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ICommand Interface

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Defines a command.

Namespace:  System.Windows.Input
Assembly:  System (in System.dll)
XMLNS for XAML: Not mapped to an xmlns.
C#
C++
F#
VB
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[TypeConverterAttribute("System.Windows.Input.CommandConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
public interface ICommand
XAML
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<object property="predefinedCommandName"/>- or -<object property="predefinedCommandName.predefinedCommandName"/>- or -<object property="{x:Static customClassName.customCommandName}"/>

XAML Values

predefinedClassName

One of the predefined command classes.

predefinedCommandName

One of the predefined commands.

customClassName

A custom class that contains the custom command. Custom classes generally require an xlmns prefix mapping; see XAML Namespaces and Namespace Mapping for WPF XAML.

customCommandName

A custom command.

The ICommand type exposes the following members.

  Name Description
Public method Supported by Portable Class Library CanExecute Defines the method that determines whether the command can execute in its current state.
Public method Supported by Portable Class Library Execute Defines the method to be called when the command is invoked.
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  Name Description
Public event Supported by Portable Class Library CanExecuteChanged Occurs when changes occur that affect whether or not the command should execute.
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RoutedCommand and RoutedUICommand are two implementations of the ICommand interface in Windows Presentation Foundation (WPF).

.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

Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, 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.

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