check-if-there-are-any-changes-on-a-session.dotnet.markdown

Session: How to check if there are any changes on a session?

Single entity can be checked for changes using HasChanged method, but there is also a possibility to check if there are any changes on a session or even what has changed. Both HasChanges property and WhatChanged method are available in Advanced session operations.

{PANEL:HasChanges}

Property indicates if session contains any changes. That is if there are any new, changed or deleted entities.

Syntax

{CODE what_changed_1@ClientApi\Session\HowTo\WhatChanged.cs /}

Example

{CODE what_changed_2@ClientApi\Session\HowTo\WhatChanged.cs /}

{PANEL/}

{PANEL:WhatChanged}

Method returns all changes for each entity stored within session. Including name of the field/property that changed, its old and new value and change type.

Syntax

{CODE what_changed_3@ClientApi\Session\HowTo\WhatChanged.cs /}

ReturnValue
IDictionary<string, DocumentsChanges[]>	Dictionary containing list of changes per document key.

Example I

{CODE what_changed_4@ClientApi\Session\HowTo\WhatChanged.cs /}

Example II

{CODE what_changed_5@ClientApi\Session\HowTo\WhatChanged.cs /}

{PANEL/}

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