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ContextItemManager.Subscribe Method (Type, SubscribeContextCallback)

When overridden in a derived class, adds an event callback that is invoked when a context item of the specified item type changes.

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

'Declaration
Public MustOverride Sub Subscribe ( _
	contextItemType As Type, _
	callback As SubscribeContextCallback _
)

Parameters

contextItemType
Type: System.Type
The type of item you want to subscribe to.
callback
Type: System.Activities.Presentation.SubscribeContextCallback
The SubscribeContextCallback that is invoked when contextItemType changes.

ExceptionCondition
ArgumentNullException

contextItemType or callback is Nothing.

.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.

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