ICommand.CanExecute Method

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

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


Function CanExecute ( _
    parameter As Object _
) As Boolean
bool CanExecute(
    Object parameter


  • parameter
    Type: System.Object
    Data used by the command. If the command does not require data to be passed, this object can be set to nulla null reference (Nothing in Visual Basic).

Return Value

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

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.