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ICommand Interface

Defines a command.

Namespace:  System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

[TypeConverterAttribute("System.Windows.Input.CommandConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
public interface ICommand
<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.

  NameDescription
Public methodCanExecuteDefines the method that determines whether the command can execute in its current state.
Public methodExecuteDefines the method to be called when the command is invoked.
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  NameDescription
Public eventCanExecuteChangedOccurs 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, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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