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ICommand.CanExecute Method

.NET Framework 4.5

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

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

bool CanExecute(
	Object parameter
)

Parameters

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 null.

Return Value

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

Remarks

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

Version Information

.NET Framework

Supported in: 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

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

ICommand Interface

System.Windows.Input Namespace

ICommandSource

RoutedCommand

CommandManager

Other Resources

Commanding Overview

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