CanExecuteChanged Event
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ICommand::CanExecuteChanged Event

 

Occurs when changes occur that affect whether or not the command should execute.

Namespace:   System.Windows.Input
Assembly:  System (in System.dll)

event EventHandler^ CanExecuteChanged {
	void add(EventHandler^ value);
	void remove(EventHandler^ value);
}

Normally, a command source calls CanExecute on the command when this event occurs.

Normally, if the command cannot execute, the command source disables itself.

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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