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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

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

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

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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