[C#/WPF] CommandManager 클래스 : AddExecutedHandler/AddCanExecuteHandler 메소드를 사용해 명령 핸들러 추가/제거하기

TestProject.zip

다운로드

▶ MainWindow.xaml

<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="CommandManager 클래스 : AddExecutedHandler/AddCanExecuteHandler 메소드를 사용해 명령 핸들러 추가/제거하기"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid>
        <StackPanel
            HorizontalAlignment="Center"
            VerticalAlignment="Center">
            <Button Name="addButton"
                Width="100"
                Height="30">
                명령 추가
            </Button>
            <Button Name="removeButton"
                Margin="0 10 0 0"
                Width="100"
                Height="30">
                명령 제거
            </Button>
            <Button Name="helpButton"
                Margin="0 10 0 0"
                Width="100"
                Height="30"
                Command="ApplicationCommands.Help">
                도움말
            </Button>
        </StackPanel>
    </Grid>
</Window>

 

728x90

 

▶ MainWindow.xaml.cs

using System.Windows;
using System.Windows.Input;

namespace TestProject
{
    /// <summary>
    /// 메인 윈도우
    /// </summary>
    public partial class MainWindow : Window
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainWindow()
        {
            InitializeComponent();

            this.addButton.Click    += addButton_Click;
            this.removeButton.Click += removeButton_Click;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 명령 추가 버튼 클릭시 처리하기 - addButton_Click(sender, e)

        /// <summary>
        /// 명령 추가 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void addButton_Click(object sender, RoutedEventArgs e)
        {
            CommandManager.AddExecutedHandler  (this.helpButton, HelpCommand_Executed  );
            CommandManager.AddCanExecuteHandler(this.helpButton, HelpCommand_CanExecute);
        }

        #endregion
        #region 명령 제거 버튼 클릭시 처리하기 - removeButton_Click(sender, e)

        /// <summary>
        /// 명령 제거 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void removeButton_Click(object sender, RoutedEventArgs e)
        {
            CommandManager.RemoveExecutedHandler  (this.helpButton, HelpCommand_Executed  );
            CommandManager.RemoveCanExecuteHandler(this.helpButton, HelpCommand_CanExecute);
        }

        #endregion

        #region 도움말 명령 실행시 처리하기 - HelpCommand_Executed(sender, e)

        /// <summary>
        /// 도움말 명령 실행시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void HelpCommand_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            MessageBox.Show("도움말 명령이 호출되었습니다.");
        }

        #endregion
        #region 도움말 명령 실행 가능 여부 구하기 - HelpCommand_CanExecute(sender, e)

        /// <summary>
        /// 도움말 명령 실행 가능 여부 구하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void HelpCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = true;
        }

        #endregion
    }
}