Activity.Canceling Event

Occurs when the activity execution is canceled.

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

[BrowsableAttribute(false)]
public event EventHandler<ActivityExecutionStatusChangedEventArgs> Canceling

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The Cancel method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class. For more information about handling events, see Consuming Events.

Notes to Inheritors

When overriding Canceling in a derived class, make sure to call the base class Cancel method so that registered delegates receive the event.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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