■ CommandManager 클래스의 AddExecutedHandler/AddCanExecuteHandler 메소드를 사용해 명령 핸들러를 추가/제거하는 방법을 보여준다.
▶ MainWindow.xaml
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<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> |
▶ MainWindow.xaml.cs
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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 } } |
