GettingFocusEventArgs.TryCancel Method
Definition
Important
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Attempts to cancel the ongoing focus action.
public:
virtual bool TryCancel() = TryCancel;bool TryCancel();public bool TryCancel();function tryCancel()Public Function TryCancel () As BooleanReturns
bool
true if the focus action is canceled; otherwise, false.
Remarks
You should call the TryCancel method instead of setting this property.
The GotFocus routed event is raised on an element after it receives focus, while the LostFocus routed event is raised on an element after it loses focus.
The GettingFocus and LosingFocus routed events occur before the focus change takes place, which enables your application to modify or cancel the focus change behavior.
GettingFocus and LosingFocus are raised synchronously, while GotFocus and LostFocus are raised asynchronously. For example, if your app calls the Focus method of a control, GettingFocus is raised during the call, but GotFocus is raised after the call completes.
If focus is moved while these events are still bubbling, an exception is thrown.
Applies to
See also
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