ContextItem.OnItemChanged Method
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Represents a method that is called on a 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.Design
Assembly: System.Activities.Design.Base (in System.Activities.Design.Base.dll)
Syntax
'Declaration
Protected Overridable Sub OnItemChanged ( _
context As EditingContext, _
previousItem As ContextItem _
)
'Usage
Dim context As EditingContext
Dim previousItem As ContextItem
Me.OnItemChanged(context, previousItem)
protected virtual void OnItemChanged(
EditingContext context,
ContextItem previousItem
)
protected:
virtual void OnItemChanged(
EditingContext^ context,
ContextItem^ previousItem
)
protected function OnItemChanged(
context : EditingContext,
previousItem : ContextItem
)
abstract OnItemChanged :
context:EditingContext *
previousItem:ContextItem -> unit
override OnItemChanged :
context:EditingContext *
previousItem:ContextItem -> unit
Parameters
- context
Type: System.Activities.Design.EditingContext
The editing context that is making this change.
- previousItem
Type: System.Activities.Design.ContextItem
The previously active item in the context. 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 Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Platforms
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Version Information
.NET Framework
Supported in: 4