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ContextItem.OnItemChanged Method

Represents a method that is called on the context item before it is stored in the context item manager. The previous item in the context item manager is passed as a parameter.

Namespace:  System.Activities.Presentation
Assembly:  System.Activities.Presentation (in System.Activities.Presentation.dll)

protected virtual void OnItemChanged(
	EditingContext context,
	ContextItem previousItem


Type: System.Activities.Presentation.EditingContext
The EditingContext within which the change is being made.
Type: System.Activities.Presentation.ContextItem
The previously active ContextItem.

Because items must have default constructors, a default item will be constructed if an item is passed into the context the first time.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.