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ICommand.CanExecute Method

Defines the method that determines whether the command can execute in its current state.

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

bool CanExecute(
	Object parameter
You cannot use methods in XAML.


Type: System.Object

Data used by the command. If the command does not require data to be passed, this object can be set to null.

Return Value

Type: System.Boolean
true if this command can be executed; otherwise, false.

Typically, a command source calls the CanExecute method when the CanExecuteChanged event is raised.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0