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DataGridViewCellContextMenuStripNeededEventHandler.xml
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DataGridViewCellContextMenuStripNeededEventHandler.xml
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<Type Name="DataGridViewCellContextMenuStripNeededEventHandler" FullName="System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventHandler">
<TypeSignature Language="C#" Value="public delegate void DataGridViewCellContextMenuStripNeededEventHandler(object sender, DataGridViewCellContextMenuStripNeededEventArgs e);" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;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;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0" />
<TypeSignature Language="ILAsm" Value=".class public auto ansi sealed DataGridViewCellContextMenuStripNeededEventHandler extends System.MulticastDelegate" />
<TypeSignature Language="DocId" Value="T:System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventHandler" />
<TypeSignature Language="VB.NET" Value="Public Delegate Sub DataGridViewCellContextMenuStripNeededEventHandler(sender As Object, e As DataGridViewCellContextMenuStripNeededEventArgs)" />
<TypeSignature Language="F#" Value="type DataGridViewCellContextMenuStripNeededEventHandler = delegate of obj * DataGridViewCellContextMenuStripNeededEventArgs -> unit" />
<TypeSignature Language="C++ CLI" Value="public delegate void DataGridViewCellContextMenuStripNeededEventHandler(System::Object ^ sender, DataGridViewCellContextMenuStripNeededEventArgs ^ e);" />
<TypeSignature Language="C#" Value="public delegate void DataGridViewCellContextMenuStripNeededEventHandler(object? sender, DataGridViewCellContextMenuStripNeededEventArgs e);" FrameworkAlternate="windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Base>
<BaseTypeName>System.Delegate</BaseTypeName>
</Base>
<Parameters>
<Parameter Name="sender" Type="System.Object">
<Attributes>
<Attribute FrameworkAlternate="windowsdesktop-8.0;windowsdesktop-9.0">
<AttributeName Language="C#">[System.Runtime.CompilerServices.Nullable(2)]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.CompilerServices.Nullable(2)>]</AttributeName>
</Attribute>
</Attributes>
</Parameter>
<Parameter Name="e" Type="System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventArgs" />
</Parameters>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Docs>
<param name="sender">The source of the event.</param>
<param name="e">A <see cref="T:System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventArgs" /> that contains the event data.</param>
<summary>Represents the method that will handle a <see cref="E:System.Windows.Forms.DataGridView.CellContextMenuStripNeeded" /> event of a <see cref="T:System.Windows.Forms.DataGridView" />.</summary>
<remarks>
<format type="text/markdown"><.
You can also specify shortcut menus for individual rows rather than individual cells by setting the row <xref:System.Windows.Forms.DataGridViewRow.ContextMenuStrip%2A> property or handling the <xref:System.Windows.Forms.DataGridView> control's <xref:System.Windows.Forms.DataGridView.RowContextMenuStripNeeded> event. The cell <xref:System.Windows.Forms.DataGridViewCell.ContextMenuStrip%2A> property setting overrides the row <xref:System.Windows.Forms.DataGridViewRow.ContextMenuStrip%2A> property setting, and the <xref:System.Windows.Forms.DataGridView.CellContextMenuStripNeeded> event overrides both the <xref:System.Windows.Forms.DataGridView.RowContextMenuStripNeeded> event and the row <xref:System.Windows.Forms.DataGridViewRow.ContextMenuStrip%2A> property setting. You can specify `null` for a cell shortcut menu, however, to prevent a row shortcut menu from being overridden.
For more information about how to handle events, see [Handling and Raising Events](/dotnet/standard/events/).
When you create a <xref:System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventHandler> delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see [Handling and Raising Events](/dotnet/standard/events/).
## Examples
The following code example uses <xref:System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventArgs> to set the context menu without unsharing the row.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/System.Windows.Forms.DataGridView_SharedRowScenarios/CPP/sharedrows.cpp" id="Snippet20":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/DataGridView/CellContextMenuStripNeeded/sharedrows.cs" id="Snippet20":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/System.Windows.Forms.DataGridView_SharedRowScenarios/VB/sharedrows.vb" id="Snippet20":::
]]></format>
</remarks>
<altmember cref="T:System.Windows.Forms.DataGridView" />
<altmember cref="E:System.Windows.Forms.DataGridView.CellContextMenuStripNeeded" />
<altmember cref="P:System.Windows.Forms.DataGridView.DataSource" />
<altmember cref="P:System.Windows.Forms.DataGridView.VirtualMode" />
<altmember cref="T:System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventArgs" />
<altmember cref="P:System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventArgs.ContextMenuStrip" />
<altmember cref="P:System.Windows.Forms.DataGridViewCell.ContextMenuStrip" />
<altmember cref="E:System.Windows.Forms.DataGridView.RowContextMenuStripNeeded" />
<altmember cref="P:System.Windows.Forms.DataGridViewRow.ContextMenuStrip" />
<altmember cref="T:System.Windows.Forms.ContextMenuStrip" />
<related type="Article" href="/dotnet/framework/winforms/controls/best-practices-for-scaling-the-windows-forms-datagridview-control">Best Practices for Scaling the Windows Forms DataGridView Control</related>
</Docs>
</Type>