WorkflowInstance.xml

<Type Name="WorkflowInstance" FullName="System.Activities.Hosting.WorkflowInstance">
  <TypeSignature Language="C#" Value="public abstract class WorkflowInstance" />
  <TypeSignature Language="ILAsm" Value=".class public auto ansi abstract beforefieldinit WorkflowInstance extends System.Object" FrameworkAlternate="netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1" />
  <TypeSignature Language="DocId" Value="T:System.Activities.Hosting.WorkflowInstance" />
  <TypeSignature Language="VB.NET" Value="Public MustInherit Class WorkflowInstance" />
  <TypeSignature Language="F#" Value="type WorkflowInstance = class" />
  <TypeSignature Language="C++ CLI" Value="public ref class WorkflowInstance abstract" />
  <TypeSignature Language="ILAsm" Value=".class public auto ansi abstract WorkflowInstance extends System.Object" FrameworkAlternate="netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
  <AssemblyInfo>
    <AssemblyName>System.Activities</AssemblyName>
    <AssemblyVersion>4.0.0.0</AssemblyVersion>
  </AssemblyInfo>
  <Base>
    <BaseTypeName>System.Object</BaseTypeName>
  </Base>
  <Interfaces />
  <Docs>
    <summary>
      <see cref="T:System.Activities.Hosting.WorkflowInstance" /> is a lightweight, per-instance runtime for executing a workflow program. It can be constructed to create a new workflow instance or from existing instance state. The APIs that <see cref="T:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl" /> exposes are the minimal set of runtime controls from which higher level operations can be implemented. This API set represents the entire breadth of functionality of the runtime. <see cref="T:System.Activities.Hosting.WorkflowInstance" /> is an abstract class and relies on a host's implementation of its abstract methods in order to provide host functionality such as synchronization, persistence, tracking, and extensions.</summary>
    <remarks>
      <format type="text/markdown"><![CDATA[  
  
## Remarks  
 <xref:System.Activities.Hosting.WorkflowInstance> is single threaded and assumes that the host synchronizes all access to it. An attempt to call multiple APIs simultaneously will result in an <xref:System.InvalidOperationException> being thrown.  
  
 Internally, a <xref:System.Activities.Hosting.WorkflowInstance> has two states: Running and Paused. The only way to cause the runtime to transition from paused to running is to call <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.Run%2A>. All actions (except Pause) can only be taken while the runtime is Paused. The runtime will become spontaneously Paused in the following situations:  
  
-   An error fatal to the runtime has occurred. The host will be signaled through <xref:System.Activities.Hosting.WorkflowInstance.OnRequestAbort%2A> (which does not signal a transition to Paused) and then notified through <xref:System.Activities.Hosting.WorkflowInstance.OnNotifyPaused%2A>.  
  
-   An exception in the workflow was uncaught and escaped the root. The host will be notified through the <xref:System.Activities.Hosting.WorkflowInstance.OnNotifyUnhandledException%2A> method.  
  
-   The scheduler has run out of work items and is now <xref:System.Activities.Hosting.WorkflowInstanceState.Idle>. The host will be notified through the <xref:System.Activities.Hosting.WorkflowInstance.OnNotifyPaused%2A> method. Note that the scheduler could have run out of work items because the instance is idle or because the instance is complete. The <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.State%2A> value of the <xref:System.Activities.Hosting.WorkflowInstance.Controller%2A> property can be used to differentiate between the two.  
  
 The host can request a change from Running to Paused by calling the <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.RequestPause%2A> or <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.PauseWhenPersistable%2A> methods of the <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl> instance returned by the <xref:System.Activities.Hosting.WorkflowInstance.Controller%2A> property. This request should not be considered to have a specific response meaning that the host should not attempt to correlate an OnNotify* or <xref:System.Activities.Hosting.WorkflowInstance.OnRequestAbort%2A> with a specific call to pause. In response to a pause request, the runtime may transition to Paused and call <xref:System.Activities.Hosting.WorkflowInstance.OnNotifyPaused%2A> while the scheduler still has pending work items. The <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.State%2A> value of the <xref:System.Activities.Hosting.WorkflowInstance.Controller%2A> property can be used to determine whether the scheduler has no more work or was interrupted by a request to pause.  
  
 The <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.RequestPause%2A> method of the <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl> instance returned by the <xref:System.Activities.Hosting.WorkflowInstance.Controller%2A> property is the only method which can be called while the <xref:System.Activities.Hosting.WorkflowInstance> is in the Running state. All other methods will throw an <xref:System.InvalidOperationException> if called.Given the rules for how <xref:System.Activities.Hosting.WorkflowInstance> transitions from one state to another, the public notion of Running and Paused can be defined as follows:  
  
-   Running - The state between a call to <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.Run%2A> and the next WorkflowInstance.OnNotify*.  
  
-   Paused - The state between the last WorkflowInstance.OnNotify* and the next call to <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.Run%2A>.  
  
 ]]></format>
    </remarks>
  </Docs>
  <Members>
    <MemberGroup MemberName=".ctor">
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Docs>
        <summary>Initializes a new instance of the <see cref="T:System.Activities.Hosting.WorkflowInstance" /> class.</summary>
      </Docs>
    </MemberGroup>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="protected WorkflowInstance (System.Activities.Activity workflowDefinition);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor(class System.Activities.Activity workflowDefinition) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.#ctor(System.Activities.Activity)" />
      <MemberSignature Language="VB.NET" Value="Protected Sub New (workflowDefinition As Activity)" />
      <MemberSignature Language="F#" Value="new System.Activities.Hosting.WorkflowInstance : System.Activities.Activity -&gt; System.Activities.Hosting.WorkflowInstance" Usage="new System.Activities.Hosting.WorkflowInstance workflowDefinition" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; WorkflowInstance(System::Activities::Activity ^ workflowDefinition);" />
      <MemberType>Constructor</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Parameters>
        <Parameter Name="workflowDefinition" Type="System.Activities.Activity" />
      </Parameters>
      <Docs>
        <param name="workflowDefinition">The activity that defines the workflow.</param>
        <summary>Initializes a new instance of the <see cref="T:System.Activities.Hosting.WorkflowInstance" /> class with the specified workflow definition.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="protected WorkflowInstance (System.Activities.Activity workflowDefinition, System.Activities.WorkflowIdentity definitionIdentity);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor(class System.Activities.Activity workflowDefinition, class System.Activities.WorkflowIdentity definitionIdentity) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.#ctor(System.Activities.Activity,System.Activities.WorkflowIdentity)" />
      <MemberSignature Language="VB.NET" Value="Protected Sub New (workflowDefinition As Activity, definitionIdentity As WorkflowIdentity)" />
      <MemberSignature Language="F#" Value="new System.Activities.Hosting.WorkflowInstance : System.Activities.Activity * System.Activities.WorkflowIdentity -&gt; System.Activities.Hosting.WorkflowInstance" Usage="new System.Activities.Hosting.WorkflowInstance (workflowDefinition, definitionIdentity)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; WorkflowInstance(System::Activities::Activity ^ workflowDefinition, System::Activities::WorkflowIdentity ^ definitionIdentity);" />
      <MemberType>Constructor</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Parameters>
        <Parameter Name="workflowDefinition" Type="System.Activities.Activity" Index="0" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
        <Parameter Name="definitionIdentity" Type="System.Activities.WorkflowIdentity" Index="1" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      </Parameters>
      <Docs>
        <param name="workflowDefinition">The activity that defines the workflow.</param>
        <param name="definitionIdentity">The definition identity.</param>
        <summary>Initializes a new instance of the <see cref="T:System.Activities.Hosting.WorkflowInstance" /> class with the specified workflow definition and definition identity.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="BeginFlushTrackingRecords">
      <MemberSignature Language="C#" Value="protected IAsyncResult BeginFlushTrackingRecords (TimeSpan timeout, AsyncCallback callback, object state);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance class System.IAsyncResult BeginFlushTrackingRecords(valuetype System.TimeSpan timeout, class System.AsyncCallback callback, object state) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.BeginFlushTrackingRecords(System.TimeSpan,System.AsyncCallback,System.Object)" />
      <MemberSignature Language="VB.NET" Value="Protected Function BeginFlushTrackingRecords (timeout As TimeSpan, callback As AsyncCallback, state As Object) As IAsyncResult" />
      <MemberSignature Language="F#" Value="member this.BeginFlushTrackingRecords : TimeSpan * AsyncCallback * obj -&gt; IAsyncResult" Usage="workflowInstance.BeginFlushTrackingRecords (timeout, callback, state)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; IAsyncResult ^ BeginFlushTrackingRecords(TimeSpan timeout, AsyncCallback ^ callback, System::Object ^ state);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.IAsyncResult</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="timeout" Type="System.TimeSpan" Index="0" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
        <Parameter Name="callback" Type="System.AsyncCallback" Index="1" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
        <Parameter Name="state" Type="System.Object" Index="2" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      </Parameters>
      <Docs>
        <param name="timeout">The time period after which to abort the attempt.</param>
        <param name="callback">The method to be called when the track operation has completed.</param>
        <param name="state">The information about the asynchronous operation.</param>
        <summary>Called by the workflow runtime to begin sending pending tracking records to tracking participants asynchronously.</summary>
        <returns>The status of the current track operation.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="Controller">
      <MemberSignature Language="C#" Value="protected System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl Controller { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance valuetype System.Activities.Hosting.WorkflowInstance/WorkflowInstanceControl Controller" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.Controller" />
      <MemberSignature Language="VB.NET" Value="Protected ReadOnly Property Controller As WorkflowInstance.WorkflowInstanceControl" />
      <MemberSignature Language="F#" Value="member this.Controller : System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl" Usage="System.Activities.Hosting.WorkflowInstance.Controller" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; property System::Activities::Hosting::WorkflowInstance::WorkflowInstanceControl Controller { System::Activities::Hosting::WorkflowInstance::WorkflowInstanceControl get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Activities.Hosting.WorkflowInstance+WorkflowInstanceControl</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets the <see cref="T:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl" /> instance for this <see cref="T:System.Activities.Hosting.WorkflowInstance" />.</summary>
        <value>The controller instance for this workflow instance.</value>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="DefinitionIdentity">
      <MemberSignature Language="C#" Value="public System.Activities.WorkflowIdentity DefinitionIdentity { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Activities.WorkflowIdentity DefinitionIdentity" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.DefinitionIdentity" />
      <MemberSignature Language="VB.NET" Value="Public ReadOnly Property DefinitionIdentity As WorkflowIdentity" />
      <MemberSignature Language="F#" Value="member this.DefinitionIdentity : System.Activities.WorkflowIdentity" Usage="System.Activities.Hosting.WorkflowInstance.DefinitionIdentity" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property System::Activities::WorkflowIdentity ^ DefinitionIdentity { System::Activities::WorkflowIdentity ^ get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Activities.WorkflowIdentity</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets or sets the definition identity of <see cref="T:System.Activities.Hosting.WorkflowInstance" />.</summary>
        <value>The definition identity of <see cref="T:System.Activities.Hosting.WorkflowInstance" />.</value>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="DisposeExtensions">
      <MemberSignature Language="C#" Value="protected void DisposeExtensions ();" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void DisposeExtensions() cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.DisposeExtensions" />
      <MemberSignature Language="VB.NET" Value="Protected Sub DisposeExtensions ()" />
      <MemberSignature Language="F#" Value="member this.DisposeExtensions : unit -&gt; unit" Usage="workflowInstance.DisposeExtensions " />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void DisposeExtensions();" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Calls <see cref="M:System.IDisposable.Dispose" /> on all extensions that implement <see cref="T:System.IDisposable" />.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="EndFlushTrackingRecords">
      <MemberSignature Language="C#" Value="protected void EndFlushTrackingRecords (IAsyncResult result);" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void EndFlushTrackingRecords(class System.IAsyncResult result) cil managed" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.EndFlushTrackingRecords(System.IAsyncResult)" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      <MemberSignature Language="VB.NET" Value="Protected Sub EndFlushTrackingRecords (result As IAsyncResult)" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void EndFlushTrackingRecords(IAsyncResult ^ result);" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      <MemberSignature Language="F#" Value="member this.EndFlushTrackingRecords : IAsyncResult -&gt; unit" Usage="workflowInstance.EndFlushTrackingRecords result" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1">System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="result" Type="System.IAsyncResult" Index="0" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      </Parameters>
      <Docs>
        <param name="result">The status of the asynchronous track operation.</param>
        <summary>Called by the workflow runtime to end the track operation.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="FlushTrackingRecords">
      <MemberSignature Language="C#" Value="protected void FlushTrackingRecords (TimeSpan timeout);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void FlushTrackingRecords(valuetype System.TimeSpan timeout) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.FlushTrackingRecords(System.TimeSpan)" />
      <MemberSignature Language="VB.NET" Value="Protected Sub FlushTrackingRecords (timeout As TimeSpan)" />
      <MemberSignature Language="F#" Value="member this.FlushTrackingRecords : TimeSpan -&gt; unit" Usage="workflowInstance.FlushTrackingRecords timeout" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void FlushTrackingRecords(TimeSpan timeout);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="timeout" Type="System.TimeSpan" Index="0" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      </Parameters>
      <Docs>
        <param name="timeout">The time period after which to abort the attempt.</param>
        <summary>Called by the workflow runtime to send pending tracking records to tracking participants.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="GetActivitiesBlockingUpdate">
      <MemberSignature Language="C#" Value="protected static System.Collections.Generic.IList&lt;System.Activities.DynamicUpdate.ActivityBlockingUpdate&gt; GetActivitiesBlockingUpdate (object deserializedRuntimeState, System.Activities.DynamicUpdate.DynamicUpdateMap updateMap);" />
      <MemberSignature Language="ILAsm" Value=".method familystatic hidebysig class System.Collections.Generic.IList`1&lt;class System.Activities.DynamicUpdate.ActivityBlockingUpdate&gt; GetActivitiesBlockingUpdate(object deserializedRuntimeState, class System.Activities.DynamicUpdate.DynamicUpdateMap updateMap) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.GetActivitiesBlockingUpdate(System.Object,System.Activities.DynamicUpdate.DynamicUpdateMap)" />
      <MemberSignature Language="VB.NET" Value="Protected Shared Function GetActivitiesBlockingUpdate (deserializedRuntimeState As Object, updateMap As DynamicUpdateMap) As IList(Of ActivityBlockingUpdate)" />
      <MemberSignature Language="F#" Value="static member GetActivitiesBlockingUpdate : obj * System.Activities.DynamicUpdate.DynamicUpdateMap -&gt; System.Collections.Generic.IList&lt;System.Activities.DynamicUpdate.ActivityBlockingUpdate&gt;" Usage="System.Activities.Hosting.WorkflowInstance.GetActivitiesBlockingUpdate (deserializedRuntimeState, updateMap)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; static System::Collections::Generic::IList&lt;System::Activities::DynamicUpdate::ActivityBlockingUpdate ^&gt; ^ GetActivitiesBlockingUpdate(System::Object ^ deserializedRuntimeState, System::Activities::DynamicUpdate::DynamicUpdateMap ^ updateMap);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Collections.Generic.IList&lt;System.Activities.DynamicUpdate.ActivityBlockingUpdate&gt;</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="deserializedRuntimeState" Type="System.Object" Index="0" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
        <Parameter Name="updateMap" Type="System.Activities.DynamicUpdate.DynamicUpdateMap" Index="1" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      </Parameters>
      <Docs>
        <param name="deserializedRuntimeState">The deserialized runtime state.</param>
        <param name="updateMap">The update map.</param>
        <summary>Retrieves the list of activity that is blocking the update of the workflow.</summary>
        <returns>The list of activity that is blocking the update.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="GetExtension&lt;T&gt;">
      <MemberSignature Language="C#" Value="protected internal T GetExtension&lt;T&gt; () where T : class;" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig instance !!T GetExtension&lt;class T&gt;() cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.GetExtension``1" />
      <MemberSignature Language="VB.NET" Value="Protected Friend Function GetExtension(Of T As Class) () As T" />
      <MemberSignature Language="F#" Value="member this.GetExtension : unit -&gt; 'T (requires 'T : null)" Usage="workflowInstance.GetExtension " />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA;generic &lt;typename T&gt;&#xA; where T : class T GetExtension();" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>T</ReturnType>
      </ReturnValue>
      <TypeParameters>
        <TypeParameter Name="T">
          <Constraints>
            <ParameterAttribute>ReferenceTypeConstraint</ParameterAttribute>
          </Constraints>
        </TypeParameter>
      </TypeParameters>
      <Parameters />
      <Docs>
        <typeparam name="T">The type of the extension to find.</typeparam>
        <summary>Returns an extension of the specified type.</summary>
        <returns>An extension of the specified type.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="GetExtensions&lt;T&gt;">
      <MemberSignature Language="C#" Value="protected internal System.Collections.Generic.IEnumerable&lt;T&gt; GetExtensions&lt;T&gt; () where T : class;" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig instance class System.Collections.Generic.IEnumerable`1&lt;!!T&gt; GetExtensions&lt;class T&gt;() cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.GetExtensions``1" />
      <MemberSignature Language="VB.NET" Value="Protected Friend Function GetExtensions(Of T As Class) () As IEnumerable(Of T)" />
      <MemberSignature Language="F#" Value="member this.GetExtensions : unit -&gt; seq&lt;'T (requires 'T : null)&gt; (requires 'T : null)" Usage="workflowInstance.GetExtensions " />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA;generic &lt;typename T&gt;&#xA; where T : class System::Collections::Generic::IEnumerable&lt;T&gt; ^ GetExtensions();" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Collections.Generic.IEnumerable&lt;T&gt;</ReturnType>
      </ReturnValue>
      <TypeParameters>
        <TypeParameter Name="T">
          <Constraints>
            <ParameterAttribute>ReferenceTypeConstraint</ParameterAttribute>
          </Constraints>
        </TypeParameter>
      </TypeParameters>
      <Parameters />
      <Docs>
        <typeparam name="T">The type of the extension to find.</typeparam>
        <summary>Returns all extensions found for the specified type.</summary>
        <returns>All extensions found for the specified type.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="HostEnvironment">
      <MemberSignature Language="C#" Value="public System.Activities.LocationReferenceEnvironment HostEnvironment { get; set; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Activities.LocationReferenceEnvironment HostEnvironment" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.HostEnvironment" />
      <MemberSignature Language="VB.NET" Value="Public Property HostEnvironment As LocationReferenceEnvironment" />
      <MemberSignature Language="F#" Value="member this.HostEnvironment : System.Activities.LocationReferenceEnvironment with get, set" Usage="System.Activities.Hosting.WorkflowInstance.HostEnvironment" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property System::Activities::LocationReferenceEnvironment ^ HostEnvironment { System::Activities::LocationReferenceEnvironment ^ get(); void set(System::Activities::LocationReferenceEnvironment ^ value); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Attributes>
        <Attribute FrameworkAlternate="netframework-4.0">
          <AttributeName Language="C#">[get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]</AttributeName>
          <AttributeName Language="F#">[&lt;get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")&gt;]</AttributeName>
        </Attribute>
      </Attributes>
      <ReturnValue>
        <ReturnType>System.Activities.LocationReferenceEnvironment</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets or sets the root environment for the workflow instance's arguments and variables.</summary>
        <value>The root environment for the workflow instance's arguments and variables.</value>
        <remarks>
          <format type="text/markdown"><![CDATA[  
  
## Remarks  
 If this property is set after the workflow instance is initialized and <xref:System.Activities.Hosting.WorkflowInstance.IsReadOnly%2A> returns `true`, an <xref:System.InvalidOperationException> is thrown.  
  
 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="Id">
      <MemberSignature Language="C#" Value="public abstract Guid Id { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance valuetype System.Guid Id" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.Id" />
      <MemberSignature Language="VB.NET" Value="Public MustOverride ReadOnly Property Id As Guid" />
      <MemberSignature Language="F#" Value="member this.Id : Guid" Usage="System.Activities.Hosting.WorkflowInstance.Id" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; abstract property Guid Id { Guid get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Guid</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets the unique identifier for the workflow instance.</summary>
        <value>The unique identifier for the workflow instance.</value>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <MemberGroup MemberName="Initialize">
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Docs>
        <summary>Called by the host to initialize the workflow instance.</summary>
      </Docs>
    </MemberGroup>
    <Member MemberName="Initialize">
      <MemberSignature Language="C#" Value="protected void Initialize (object deserializedRuntimeState);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void Initialize(object deserializedRuntimeState) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.Initialize(System.Object)" />
      <MemberSignature Language="VB.NET" Value="Protected Sub Initialize (deserializedRuntimeState As Object)" />
      <MemberSignature Language="F#" Value="member this.Initialize : obj -&gt; unit" Usage="workflowInstance.Initialize deserializedRuntimeState" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void Initialize(System::Object ^ deserializedRuntimeState);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="deserializedRuntimeState" Type="System.Object" />
      </Parameters>
      <Docs>
        <param name="deserializedRuntimeState">The run-time state used to execute the workflow.</param>
        <summary>Called by the host to initialize the workflow instance with the workflow run-time state.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="Initialize">
      <MemberSignature Language="C#" Value="protected void Initialize (System.Collections.Generic.IDictionary&lt;string,object&gt; workflowArgumentValues, System.Collections.Generic.IList&lt;System.Activities.Handle&gt; workflowExecutionProperties);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void Initialize(class System.Collections.Generic.IDictionary`2&lt;string, object&gt; workflowArgumentValues, class System.Collections.Generic.IList`1&lt;class System.Activities.Handle&gt; workflowExecutionProperties) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.Initialize(System.Collections.Generic.IDictionary{System.String,System.Object},System.Collections.Generic.IList{System.Activities.Handle})" />
      <MemberSignature Language="VB.NET" Value="Protected Sub Initialize (workflowArgumentValues As IDictionary(Of String, Object), workflowExecutionProperties As IList(Of Handle))" />
      <MemberSignature Language="F#" Value="member this.Initialize : System.Collections.Generic.IDictionary&lt;string, obj&gt; * System.Collections.Generic.IList&lt;System.Activities.Handle&gt; -&gt; unit" Usage="workflowInstance.Initialize (workflowArgumentValues, workflowExecutionProperties)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void Initialize(System::Collections::Generic::IDictionary&lt;System::String ^, System::Object ^&gt; ^ workflowArgumentValues, System::Collections::Generic::IList&lt;System::Activities::Handle ^&gt; ^ workflowExecutionProperties);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="workflowArgumentValues" Type="System.Collections.Generic.IDictionary&lt;System.String,System.Object&gt;" />
        <Parameter Name="workflowExecutionProperties" Type="System.Collections.Generic.IList&lt;System.Activities.Handle&gt;" />
      </Parameters>
      <Docs>
        <param name="workflowArgumentValues">The input parameters to the workflow, keyed by argument name.</param>
        <param name="workflowExecutionProperties">The list of workflow execution properties.</param>
        <summary>Called by the host to initialize the workflow instance with the argument values and execution properties.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="Initialize">
      <MemberSignature Language="C#" Value="protected void Initialize (object deserializedRuntimeState, System.Activities.DynamicUpdate.DynamicUpdateMap updateMap);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void Initialize(object deserializedRuntimeState, class System.Activities.DynamicUpdate.DynamicUpdateMap updateMap) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.Initialize(System.Object,System.Activities.DynamicUpdate.DynamicUpdateMap)" />
      <MemberSignature Language="VB.NET" Value="Protected Sub Initialize (deserializedRuntimeState As Object, updateMap As DynamicUpdateMap)" />
      <MemberSignature Language="F#" Value="member this.Initialize : obj * System.Activities.DynamicUpdate.DynamicUpdateMap -&gt; unit" Usage="workflowInstance.Initialize (deserializedRuntimeState, updateMap)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void Initialize(System::Object ^ deserializedRuntimeState, System::Activities::DynamicUpdate::DynamicUpdateMap ^ updateMap);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="deserializedRuntimeState" Type="System.Object" Index="0" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
        <Parameter Name="updateMap" Type="System.Activities.DynamicUpdate.DynamicUpdateMap" Index="1" FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1" />
      </Parameters>
      <Docs>
        <param name="deserializedRuntimeState">The run-time state used to execute the workflow.</param>
        <param name="updateMap">The update map.</param>
        <summary>Called by the host to initialize the workflow instance with the workflow run-time state and update map.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="IsReadOnly">
      <MemberSignature Language="C#" Value="protected bool IsReadOnly { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance bool IsReadOnly" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.IsReadOnly" />
      <MemberSignature Language="VB.NET" Value="Protected ReadOnly Property IsReadOnly As Boolean" />
      <MemberSignature Language="F#" Value="member this.IsReadOnly : bool" Usage="System.Activities.Hosting.WorkflowInstance.IsReadOnly" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; property bool IsReadOnly { bool get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Attributes>
        <Attribute FrameworkAlternate="netframework-4.0">
          <AttributeName Language="C#">[get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]</AttributeName>
          <AttributeName Language="F#">[&lt;get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")&gt;]</AttributeName>
        </Attribute>
      </Attributes>
      <ReturnValue>
        <ReturnType>System.Boolean</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets a value that indicates whether the workflow instance has been initialized.</summary>
        <value>
          <see langword="true" /> if the workflow instance has been initialized; otherwise, <see langword="false" />.</value>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnBeginAssociateKeys">
      <MemberSignature Language="C#" Value="protected internal abstract IAsyncResult OnBeginAssociateKeys (System.Collections.Generic.ICollection&lt;System.Runtime.DurableInstancing.InstanceKey&gt; keys, AsyncCallback callback, object state);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance class System.IAsyncResult OnBeginAssociateKeys(class System.Collections.Generic.ICollection`1&lt;class System.Runtime.DurableInstancing.InstanceKey&gt; keys, class System.AsyncCallback callback, object state) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnBeginAssociateKeys(System.Collections.Generic.ICollection{System.Runtime.DurableInstancing.InstanceKey},System.AsyncCallback,System.Object)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Function OnBeginAssociateKeys (keys As ICollection(Of InstanceKey), callback As AsyncCallback, state As Object) As IAsyncResult" />
      <MemberSignature Language="F#" Value="abstract member OnBeginAssociateKeys : System.Collections.Generic.ICollection&lt;System.Runtime.DurableInstancing.InstanceKey&gt; * AsyncCallback * obj -&gt; IAsyncResult" Usage="workflowInstance.OnBeginAssociateKeys (keys, callback, state)" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract IAsyncResult ^ OnBeginAssociateKeys(System::Collections::Generic::ICollection&lt;System::Runtime::DurableInstancing::InstanceKey ^&gt; ^ keys, AsyncCallback ^ callback, System::Object ^ state);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.IAsyncResult</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="keys" Type="System.Collections.Generic.ICollection&lt;System.Runtime.DurableInstancing.InstanceKey&gt;" />
        <Parameter Name="callback" Type="System.AsyncCallback" />
        <Parameter Name="state" Type="System.Object" />
      </Parameters>
      <Docs>
        <param name="keys">The instance keys to associate with this workflow instance.</param>
        <param name="callback">The method to be called when the operation completes.</param>
        <param name="state">An optional application-specific object that contains information about the asynchronous operation.</param>
        <summary>Called by the workflow runtime to notify the host that new instance keys should be associated with this instance.</summary>
        <returns>A reference to the asynchronous associate keys operation.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnBeginFlushTrackingRecords">
      <MemberSignature Language="C#" Value="protected virtual IAsyncResult OnBeginFlushTrackingRecords (AsyncCallback callback, object state);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance class System.IAsyncResult OnBeginFlushTrackingRecords(class System.AsyncCallback callback, object state) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnBeginFlushTrackingRecords(System.AsyncCallback,System.Object)" />
      <MemberSignature Language="VB.NET" Value="Protected Overridable Function OnBeginFlushTrackingRecords (callback As AsyncCallback, state As Object) As IAsyncResult" />
      <MemberSignature Language="F#" Value="abstract member OnBeginFlushTrackingRecords : AsyncCallback * obj -&gt; IAsyncResult&#xA;override this.OnBeginFlushTrackingRecords : AsyncCallback * obj -&gt; IAsyncResult" Usage="workflowInstance.OnBeginFlushTrackingRecords (callback, state)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; virtual IAsyncResult ^ OnBeginFlushTrackingRecords(AsyncCallback ^ callback, System::Object ^ state);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.IAsyncResult</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="callback" Type="System.AsyncCallback" />
        <Parameter Name="state" Type="System.Object" />
      </Parameters>
      <Docs>
        <param name="callback">The method to be called when the track operation has completed.</param>
        <param name="state">The information about the asynchronous operation.</param>
        <summary>Asynchronous call to ask host to flush pending tracking records to tracking participants.</summary>
        <returns>The status of the current track operation.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnBeginPersist">
      <MemberSignature Language="C#" Value="protected internal abstract IAsyncResult OnBeginPersist (AsyncCallback callback, object state);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance class System.IAsyncResult OnBeginPersist(class System.AsyncCallback callback, object state) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnBeginPersist(System.AsyncCallback,System.Object)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Function OnBeginPersist (callback As AsyncCallback, state As Object) As IAsyncResult" />
      <MemberSignature Language="F#" Value="abstract member OnBeginPersist : AsyncCallback * obj -&gt; IAsyncResult" Usage="workflowInstance.OnBeginPersist (callback, state)" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract IAsyncResult ^ OnBeginPersist(AsyncCallback ^ callback, System::Object ^ state);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.IAsyncResult</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="callback" Type="System.AsyncCallback" />
        <Parameter Name="state" Type="System.Object" />
      </Parameters>
      <Docs>
        <param name="callback">The method to be called when the persist operation has completed.</param>
        <param name="state">An optional application-specific object that contains information about the asynchronous operation.</param>
        <summary>Asynchronous call to ask the host to persist the workflow.</summary>
        <returns>A reference to the current persist operation.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnBeginResumeBookmark">
      <MemberSignature Language="C#" Value="protected internal abstract IAsyncResult OnBeginResumeBookmark (System.Activities.Bookmark bookmark, object value, TimeSpan timeout, AsyncCallback callback, object state);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance class System.IAsyncResult OnBeginResumeBookmark(class System.Activities.Bookmark bookmark, object value, valuetype System.TimeSpan timeout, class System.AsyncCallback callback, object state) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnBeginResumeBookmark(System.Activities.Bookmark,System.Object,System.TimeSpan,System.AsyncCallback,System.Object)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Function OnBeginResumeBookmark (bookmark As Bookmark, value As Object, timeout As TimeSpan, callback As AsyncCallback, state As Object) As IAsyncResult" />
      <MemberSignature Language="F#" Value="abstract member OnBeginResumeBookmark : System.Activities.Bookmark * obj * TimeSpan * AsyncCallback * obj -&gt; IAsyncResult" Usage="workflowInstance.OnBeginResumeBookmark (bookmark, value, timeout, callback, state)" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract IAsyncResult ^ OnBeginResumeBookmark(System::Activities::Bookmark ^ bookmark, System::Object ^ value, TimeSpan timeout, AsyncCallback ^ callback, System::Object ^ state);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.IAsyncResult</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="bookmark" Type="System.Activities.Bookmark" />
        <Parameter Name="value" Type="System.Object" />
        <Parameter Name="timeout" Type="System.TimeSpan" />
        <Parameter Name="callback" Type="System.AsyncCallback" />
        <Parameter Name="state" Type="System.Object" />
      </Parameters>
      <Docs>
        <param name="bookmark">The bookmark to resume.</param>
        <param name="value">The data to be passed to the activity that created the <see cref="T:System.Activities.Bookmark" />.</param>
        <param name="timeout">The interval in which the resume operation must complete before the operation is canceled and a <see cref="T:System.TimeoutException" /> is thrown.</param>
        <param name="callback">The method to be called when the resume operation has completed.</param>
        <param name="state">An optional application-specific object that contains information about the asynchronous operation.</param>
        <summary>Called by the workflow runtime to notify the host that a resume bookmark operation is beginning.</summary>
        <returns>A reference to the asynchronous resume operation.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnDisassociateKeys">
      <MemberSignature Language="C#" Value="protected internal abstract void OnDisassociateKeys (System.Collections.Generic.ICollection&lt;System.Runtime.DurableInstancing.InstanceKey&gt; keys);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance void OnDisassociateKeys(class System.Collections.Generic.ICollection`1&lt;class System.Runtime.DurableInstancing.InstanceKey&gt; keys) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnDisassociateKeys(System.Collections.Generic.ICollection{System.Runtime.DurableInstancing.InstanceKey})" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Sub OnDisassociateKeys (keys As ICollection(Of InstanceKey))" />
      <MemberSignature Language="F#" Value="abstract member OnDisassociateKeys : System.Collections.Generic.ICollection&lt;System.Runtime.DurableInstancing.InstanceKey&gt; -&gt; unit" Usage="workflowInstance.OnDisassociateKeys keys" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract void OnDisassociateKeys(System::Collections::Generic::ICollection&lt;System::Runtime::DurableInstancing::InstanceKey ^&gt; ^ keys);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="keys" Type="System.Collections.Generic.ICollection&lt;System.Runtime.DurableInstancing.InstanceKey&gt;" />
      </Parameters>
      <Docs>
        <param name="keys">The list of keys to disassociate.</param>
        <summary>Called by the workflow runtime to notify the host that a certain set of instance keys should no longer be associated with this instance.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnEndAssociateKeys">
      <MemberSignature Language="C#" Value="protected internal abstract void OnEndAssociateKeys (IAsyncResult result);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance void OnEndAssociateKeys(class System.IAsyncResult result) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnEndAssociateKeys(System.IAsyncResult)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Sub OnEndAssociateKeys (result As IAsyncResult)" />
      <MemberSignature Language="F#" Value="abstract member OnEndAssociateKeys : IAsyncResult -&gt; unit" Usage="workflowInstance.OnEndAssociateKeys result" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract void OnEndAssociateKeys(IAsyncResult ^ result);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="result" Type="System.IAsyncResult" />
      </Parameters>
      <Docs>
        <param name="result">The reference to the asynchronous associate keys operation.</param>
        <summary>Called by the workflow runtime to notify the host that an associate keys operation is complete.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnEndFlushTrackingRecords">
      <MemberSignature Language="C#" Value="protected virtual void OnEndFlushTrackingRecords (IAsyncResult result);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance void OnEndFlushTrackingRecords(class System.IAsyncResult result) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnEndFlushTrackingRecords(System.IAsyncResult)" />
      <MemberSignature Language="VB.NET" Value="Protected Overridable Sub OnEndFlushTrackingRecords (result As IAsyncResult)" />
      <MemberSignature Language="F#" Value="abstract member OnEndFlushTrackingRecords : IAsyncResult -&gt; unit&#xA;override this.OnEndFlushTrackingRecords : IAsyncResult -&gt; unit" Usage="workflowInstance.OnEndFlushTrackingRecords result" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; virtual void OnEndFlushTrackingRecords(IAsyncResult ^ result);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="result" Type="System.IAsyncResult" />
      </Parameters>
      <Docs>
        <param name="result">The status of the asynchronous flush tracking records operation.</param>
        <summary>Called by the workflow runtime to notify the host when the flush tracking records operation is complete.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnEndPersist">
      <MemberSignature Language="C#" Value="protected internal abstract void OnEndPersist (IAsyncResult result);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance void OnEndPersist(class System.IAsyncResult result) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnEndPersist(System.IAsyncResult)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Sub OnEndPersist (result As IAsyncResult)" />
      <MemberSignature Language="F#" Value="abstract member OnEndPersist : IAsyncResult -&gt; unit" Usage="workflowInstance.OnEndPersist result" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract void OnEndPersist(IAsyncResult ^ result);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="result" Type="System.IAsyncResult" />
      </Parameters>
      <Docs>
        <param name="result">The reference to the asynchronous persist operation.</param>
        <summary>Called by the workflow runtime to notify the host that a persist operation is complete.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnEndResumeBookmark">
      <MemberSignature Language="C#" Value="protected internal abstract System.Activities.BookmarkResumptionResult OnEndResumeBookmark (IAsyncResult result);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance valuetype System.Activities.BookmarkResumptionResult OnEndResumeBookmark(class System.IAsyncResult result) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnEndResumeBookmark(System.IAsyncResult)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Function OnEndResumeBookmark (result As IAsyncResult) As BookmarkResumptionResult" />
      <MemberSignature Language="F#" Value="abstract member OnEndResumeBookmark : IAsyncResult -&gt; System.Activities.BookmarkResumptionResult" Usage="workflowInstance.OnEndResumeBookmark result" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract System::Activities::BookmarkResumptionResult OnEndResumeBookmark(IAsyncResult ^ result);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Activities.BookmarkResumptionResult</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="result" Type="System.IAsyncResult" />
      </Parameters>
      <Docs>
        <param name="result">The reference to the asynchronous resume bookmark operation.</param>
        <summary>Called by the workflow runtime to notify the host that a resume bookmark operation is complete.</summary>
        <returns>One of the enumeration values that indicates the result of a <see cref="T:System.Activities.Bookmark" /> resume operation.</returns>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnNotifyPaused">
      <MemberSignature Language="C#" Value="protected abstract void OnNotifyPaused ();" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance void OnNotifyPaused() cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnNotifyPaused" />
      <MemberSignature Language="VB.NET" Value="Protected MustOverride Sub OnNotifyPaused ()" />
      <MemberSignature Language="F#" Value="abstract member OnNotifyPaused : unit -&gt; unit" Usage="workflowInstance.OnNotifyPaused " />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; abstract void OnNotifyPaused();" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Called by the workflow runtime to notify the host that the workflow instance has transitioned from the running state to the paused state.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnNotifyUnhandledException">
      <MemberSignature Language="C#" Value="protected abstract void OnNotifyUnhandledException (Exception exception, System.Activities.Activity source, string sourceInstanceId);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance void OnNotifyUnhandledException(class System.Exception exception, class System.Activities.Activity source, string sourceInstanceId) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnNotifyUnhandledException(System.Exception,System.Activities.Activity,System.String)" />
      <MemberSignature Language="VB.NET" Value="Protected MustOverride Sub OnNotifyUnhandledException (exception As Exception, source As Activity, sourceInstanceId As String)" />
      <MemberSignature Language="F#" Value="abstract member OnNotifyUnhandledException : Exception * System.Activities.Activity * string -&gt; unit" Usage="workflowInstance.OnNotifyUnhandledException (exception, source, sourceInstanceId)" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; abstract void OnNotifyUnhandledException(Exception ^ exception, System::Activities::Activity ^ source, System::String ^ sourceInstanceId);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="exception" Type="System.Exception" />
        <Parameter Name="source" Type="System.Activities.Activity" />
        <Parameter Name="sourceInstanceId" Type="System.String" />
      </Parameters>
      <Docs>
        <param name="exception">The unhandled exception.</param>
        <param name="source">The activity that threw the exception.</param>
        <param name="sourceInstanceId">The unique identifier of the <see cref="T:System.Activities.ActivityInstance" /> representing the activity that threw the exception.</param>
        <summary>Called by the workflow runtime to notify the host an unhandled exception has occurred in the workflow instance.</summary>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="OnRequestAbort">
      <MemberSignature Language="C#" Value="protected internal abstract void OnRequestAbort (Exception reason);" />
      <MemberSignature Language="ILAsm" Value=".method familyorassemblyhidebysig newslot virtual instance void OnRequestAbort(class System.Exception reason) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.OnRequestAbort(System.Exception)" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride Sub OnRequestAbort (reason As Exception)" />
      <MemberSignature Language="F#" Value="abstract member OnRequestAbort : Exception -&gt; unit" Usage="workflowInstance.OnRequestAbort reason" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract void OnRequestAbort(Exception ^ reason);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="reason" Type="System.Exception" />
      </Parameters>
      <Docs>
        <param name="reason">The reason for aborting the workflow instance.</param>
        <summary>Called by the workflow runtime to notify the host that an abort operation has been requested for the workflow instance.</summary>
        <remarks>
          <format type="text/markdown"><![CDATA[  
  
## Remarks  
 Once <xref:System.Activities.Hosting.WorkflowInstance.OnRequestAbort%2A> is called, most <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl> APIs except <xref:System.Activities.Hosting.WorkflowInstance.WorkflowInstanceControl.Abort%2A> will throw an <xref:System.InvalidOperationException>. It is expected that after <xref:System.Activities.Hosting.WorkflowInstance.OnRequestAbort%2A> is called a host will trend toward a state in which it can satisfy the abort.  
  
 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="RegisterExtensionManager">
      <MemberSignature Language="C#" Value="protected void RegisterExtensionManager (System.Activities.Hosting.WorkflowInstanceExtensionManager extensionManager);" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void RegisterExtensionManager(class System.Activities.Hosting.WorkflowInstanceExtensionManager extensionManager) cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.RegisterExtensionManager(System.Activities.Hosting.WorkflowInstanceExtensionManager)" />
      <MemberSignature Language="VB.NET" Value="Protected Sub RegisterExtensionManager (extensionManager As WorkflowInstanceExtensionManager)" />
      <MemberSignature Language="F#" Value="member this.RegisterExtensionManager : System.Activities.Hosting.WorkflowInstanceExtensionManager -&gt; unit" Usage="workflowInstance.RegisterExtensionManager extensionManager" />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void RegisterExtensionManager(System::Activities::Hosting::WorkflowInstanceExtensionManager ^ extensionManager);" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="extensionManager" Type="System.Activities.Hosting.WorkflowInstanceExtensionManager" />
      </Parameters>
      <Docs>
        <param name="extensionManager">The extension manager to register.</param>
        <summary>Called by the host to register the specified extension manager, validate that all required extensions are present, and to initialize the collection of extensions to be used.</summary>
        <remarks>
          <format type="text/markdown"><![CDATA[  
  
## Remarks  
 Extensions are keyed by type, and a host provided extension will always be used if provided. Extensions added through <xref:System.Activities.Hosting.WorkflowInstanceExtensionManager.Add%2A> use the runtime type of the object as the type key. Extensions providers added through <xref:System.Activities.Hosting.WorkflowInstanceExtensionManager.Add%2A> use the decared type T of the Func\<T> as the type key. Extension providers contributed by activities through the various *ActivityMetadata.AddDefaultExtensionProvider methods are dropped if a host extension exists for the declared type or if there is a broader type provided through AddDefaultExtensionProvider (ex. if Func\<StreamWriter> is provided and Func\<TextWriter> is provided, only Func\<StreamWriter> will be kept). If an extension does not exist in the collection that is required by an activity (expressed by calling *ActivityMetadata.RequireExtension) a <xref:System.Activities.ValidationException> is thrown.  
  
 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="SupportsInstanceKeys">
      <MemberSignature Language="C#" Value="protected internal abstract bool SupportsInstanceKeys { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance bool SupportsInstanceKeys" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.SupportsInstanceKeys" />
      <MemberSignature Language="VB.NET" Value="Protected Friend MustOverride ReadOnly Property SupportsInstanceKeys As Boolean" />
      <MemberSignature Language="F#" Value="member this.SupportsInstanceKeys : bool" Usage="System.Activities.Hosting.WorkflowInstance.SupportsInstanceKeys" />
      <MemberSignature Language="C++ CLI" Value="protected public:&#xA; abstract property bool SupportsInstanceKeys { bool get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Boolean</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets a value that indicates whether the host supports the association of <see cref="P:System.Runtime.DurableInstancing.InstanceView.InstanceKeys" /> with a run-time instance.</summary>
        <value>
          <see langword="true" /> if the host supports the association of <see cref="P:System.Runtime.DurableInstancing.InstanceView.InstanceKeys" /> with a workflow instance; otherwise, <see langword="false" />.</value>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
    <Member MemberName="SynchronizationContext">
      <MemberSignature Language="C#" Value="public System.Threading.SynchronizationContext SynchronizationContext { get; set; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Threading.SynchronizationContext SynchronizationContext" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.SynchronizationContext" />
      <MemberSignature Language="VB.NET" Value="Public Property SynchronizationContext As SynchronizationContext" />
      <MemberSignature Language="F#" Value="member this.SynchronizationContext : System.Threading.SynchronizationContext with get, set" Usage="System.Activities.Hosting.WorkflowInstance.SynchronizationContext" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property System::Threading::SynchronizationContext ^ SynchronizationContext { System::Threading::SynchronizationContext ^ get(); void set(System::Threading::SynchronizationContext ^ value); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Attributes>
        <Attribute FrameworkAlternate="netframework-4.0">
          <AttributeName Language="C#">[get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]</AttributeName>
          <AttributeName Language="F#">[&lt;get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")&gt;]</AttributeName>
        </Attribute>
      </Attributes>
      <ReturnValue>
        <ReturnType>System.Threading.SynchronizationContext</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets or sets the <see cref="T:System.Threading.SynchronizationContext" /> used for scheduling the workflow instance.</summary>
        <value>The synchronization context used for scheduling the workflow instance.</value>
        <remarks>
          <format type="text/markdown"><![CDATA[  
  
## Remarks  
 If this property is set after the workflow instance is initialized and <xref:System.Activities.Hosting.WorkflowInstance.IsReadOnly%2A> returns `true`, an <xref:System.InvalidOperationException> is thrown.  
  
 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="ThrowIfReadOnly">
      <MemberSignature Language="C#" Value="protected void ThrowIfReadOnly ();" />
      <MemberSignature Language="ILAsm" Value=".method familyhidebysig instance void ThrowIfReadOnly() cil managed" />
      <MemberSignature Language="DocId" Value="M:System.Activities.Hosting.WorkflowInstance.ThrowIfReadOnly" />
      <MemberSignature Language="VB.NET" Value="Protected Sub ThrowIfReadOnly ()" />
      <MemberSignature Language="F#" Value="member this.ThrowIfReadOnly : unit -&gt; unit" Usage="workflowInstance.ThrowIfReadOnly " />
      <MemberSignature Language="C++ CLI" Value="protected:&#xA; void ThrowIfReadOnly();" />
      <MemberType>Method</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Throws an <see cref="T:System.InvalidOperationException" /> if the workflow instance has been initialized, as determined by <see cref="P:System.Activities.Hosting.WorkflowInstance.IsReadOnly" />.</summary>
        <remarks>
          <format type="text/markdown"><![CDATA[  
  
## Remarks  
 If <xref:System.Activities.Hosting.WorkflowInstance.IsReadOnly%2A> returns `true`, then an <xref:System.InvalidOperationException> is thrown.  
  
 ]]></format>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="WorkflowDefinition">
      <MemberSignature Language="C#" Value="public System.Activities.Activity WorkflowDefinition { get; }" />
      <MemberSignature Language="ILAsm" Value=".property instance class System.Activities.Activity WorkflowDefinition" />
      <MemberSignature Language="DocId" Value="P:System.Activities.Hosting.WorkflowInstance.WorkflowDefinition" />
      <MemberSignature Language="VB.NET" Value="Public ReadOnly Property WorkflowDefinition As Activity" />
      <MemberSignature Language="F#" Value="member this.WorkflowDefinition : System.Activities.Activity" Usage="System.Activities.Hosting.WorkflowInstance.WorkflowDefinition" />
      <MemberSignature Language="C++ CLI" Value="public:&#xA; property System::Activities::Activity ^ WorkflowDefinition { System::Activities::Activity ^ get(); };" />
      <MemberType>Property</MemberType>
      <AssemblyInfo>
        <AssemblyName>System.Activities</AssemblyName>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <Attributes>
        <Attribute FrameworkAlternate="netframework-4.0">
          <AttributeName Language="C#">[get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]</AttributeName>
          <AttributeName Language="F#">[&lt;get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")&gt;]</AttributeName>
        </Attribute>
      </Attributes>
      <ReturnValue>
        <ReturnType>System.Activities.Activity</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Gets the workflow definition of the workflow instance.</summary>
        <value>The workflow definition of the workflow instance.</value>
        <remarks>To be added.</remarks>
      </Docs>
    </Member>
  </Members>
</Type>