DependencyObject::RemoveHandler Method (DependencyProperty^, Object^)
Removes an EventHandler from an associated DependencyProperty.
Assembly: System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)
Parameters
- dependencyEvent
-
Type:
System.Workflow.ComponentModel::DependencyProperty^
The DependencyProperty.
- value
-
Type:
System::Object^
The Object that represents the value of this property. In this case, a Delegate type.
| Exception | Condition |
|---|---|
| ArgumentNullException | Either of the arguments is a null reference (Nothing in Visual Basic). |
| ArgumentException | The dependencyEvent is a metaproperty. |
| ArgumentException | The dependencyEvent is not an event. |
| ReadOnlyException | The value is a ActivityBind and this instance is not in DesignMode. |
Provided as a convenient direct method for removing an event delegate.
When you create a delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. Unless you remove the delegate, the event handler is called whenever the event occurs. For more information about event-handler delegates, see NIB: Events and Delegates.
Available since 3.0