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ActivityExecutionContext.CancelActivity Method

Called by a composite activity to schedule the cancellation of a child activity. The workflow runtime disallows cancellation of a child activity that is not in the Executing state.

Namespace:  System.Workflow.ComponentModel
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

public void CancelActivity(
	Activity activity
)

Parameters

activity
Type: System.Workflow.ComponentModel.Activity

The canceled Activity.

ExceptionCondition
ArgumentNullException

activity is null.

ArgumentException

activity is not a valid child of the ActivityExecutionContext. This means that either the argument is equal to the associated Activity or that the argument is not in the commented state and is a child of the Activity associated with this ActivityExecutionContext.

ObjectDisposedException

The ActivityExecutionContext has been disposed.

InvalidOperationException

activity is not in the Executing state.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, 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.

.NET Framework

Supported in: 3.5, 3.0

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