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CancelActivity Method

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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0
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