46 lines
2.1 KiB
C#
46 lines
2.1 KiB
C#
//---------------------------------------------------------------------------
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//
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// Copyright (C) Microsoft Corporation. All rights reserved.
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//
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//---------------------------------------------------------------------------
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using System;
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using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using System.Windows.Markup;
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namespace System.Windows.Input
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{
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class BuildInfo{
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public const string WCP_VERSION="4.0.0.0";
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public const string WCP_PUBLIC_KEY_TOKEN="31bf3856ad364e35";
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}
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///<summary>
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/// An interface that allows an application author to define a method to be invoked.
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///</summary>
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[TypeForwardedFrom("PresentationCore, Version=" + BuildInfo.WCP_VERSION + ", Culture=neutral, PublicKeyToken=" + BuildInfo.WCP_PUBLIC_KEY_TOKEN)]
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[TypeConverter("System.Windows.Input.CommandConverter, PresentationFramework, Version=" + BuildInfo.WCP_VERSION + ", Culture=neutral, PublicKeyToken=" + BuildInfo.WCP_PUBLIC_KEY_TOKEN + ", Custom=null")]
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[ValueSerializer("System.Windows.Input.CommandValueSerializer, PresentationFramework, Version=" + BuildInfo.WCP_VERSION + ", Culture=neutral, PublicKeyToken=" + BuildInfo.WCP_PUBLIC_KEY_TOKEN + ", Custom=null")]
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public interface ICommand
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{
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/// <summary>
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/// Raised when the ability of the command to execute has changed.
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/// </summary>
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event EventHandler CanExecuteChanged;
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/// <summary>
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/// Returns whether the command can be executed.
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/// </summary>
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/// <param name="parameter">A parameter that may be used in executing the command. This parameter may be ignored by some implementations.</param>
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/// <returns>true if the command can be executed with the given parameter and current state. false otherwise.</returns>
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bool CanExecute(object parameter);
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/// <summary>
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/// Defines the method that should be executed when the command is executed.
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/// </summary>
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/// <param name="parameter">A parameter that may be used in executing the command. This parameter may be ignored by some implementations.</param>
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void Execute(object parameter);
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}
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}
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