■ Behavior<T> 클래스를 사용해 마우스 왼쪽 버튼 클릭시 컨텍스트 메뉴를 표시하는 방법을 보여준다.
▶ MouseLeftButtonContextMenuSupportBehavior.cs
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using System; using System.Windows; using System.Windows.Controls; using System.Windows.Input; using System.Windows.Interactivity; namespace TestProject { /// <summary> /// 마우스 왼쪽 버튼 컨텍스트 메뉴 지원 동작 /// </summary> public class MouseLeftButtonContextMenuSupportBehavior : Behavior<UIElement> { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 마우스 왼쪽 버튼 DOWN 허용 여부 첨부 속성 - AllowMouseLeftMouseDownProperty /// <summary> /// 마우스 왼쪽 버튼 DOWN 허용 여부 속성 /// </summary> public static readonly DependencyProperty AllowMouseLeftMouseDownProperty = DependencyProperty.RegisterAttached ( "AllowMouseLeftMouseDown", typeof(bool), typeof(MouseLeftButtonContextMenuSupportBehavior), new FrameworkPropertyMetadata(false) ); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 마우스 왼쪽 버튼 DOWN 허용 여부 구하기 - GetAllowMouseLeftMouseDown(element) /// <summary> /// 마우스 왼쪽 버튼 DOWN 허용 여부 구하기 /// </summary> /// <param name="element">UI 엘리먼트</param> /// <returns>마우스 왼쪽 버튼 DOWN 허용 여부</returns> public static bool GetAllowMouseLeftMouseDown(UIElement element) { return (bool)element.GetValue(AllowMouseLeftMouseDownProperty); } #endregion #region 마우스 왼쪽 버튼 DOWN 허용 여부 설정하기 - SetAllowMouseLeftMouseDown(element, value) /// <summary> /// 마우스 왼쪽 버튼 DOWN 허용 여부 설정하기 /// </summary> /// <param name="element">UI 엘리먼트</param> /// <param name="value">값</param> public static void SetAllowMouseLeftMouseDown(UIElement element, bool value) { element.SetValue(AllowMouseLeftMouseDownProperty, value); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Protected #region 접착시 처리하기 - OnAttached() /// <summary> /// 접착시 처리하기 /// </summary> protected override void OnAttached() { base.OnAttached(); if(AssociatedObject != null) { AssociatedObject.AddHandler ( UIElement.PreviewMouseLeftButtonDownEvent, new RoutedEventHandler(UIElement_PreviewMouseLeftButtonDown) ); } } #endregion #region 탈착시 처리하기 - OnDetaching() /// <summary> /// 탈착시 처리하기 /// </summary> protected override void OnDetaching() { base.OnDetaching(); if(AssociatedObject != null) { AssociatedObject.RemoveHandler ( UIElement.PreviewMouseLeftButtonDownEvent, new RoutedEventHandler(UIElement_PreviewMouseLeftButtonDown) ); } } #endregion //////////////////////////////////////////////////////////////////////////////// Private #region UI 엘리먼트 프리뷰 마우스 왼쪽 버튼 DOWN 처리하기 - UIElement_PreviewMouseLeftButtonDown(sender, e) /// <summary> /// UI 엘리먼트 프리뷰 마우스 왼쪽 버튼 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void UIElement_PreviewMouseLeftButtonDown(object sender, RoutedEventArgs e) { UIElement element = e.Source as UIElement; if(element != null) { if(true.Equals(element.GetValue(MouseLeftButtonContextMenuSupportBehavior.AllowMouseLeftMouseDownProperty))) { ContextMenu contextMenu = ContextMenuService.GetContextMenu(element); if(contextMenu != null) { MouseButtonEventArgs eventArgs = new MouseButtonEventArgs ( Mouse.PrimaryDevice, Environment.TickCount, MouseButton.Right ); eventArgs.RoutedEvent = Mouse.MouseUpEvent; eventArgs.Source = element; InputManager.Current.ProcessInput(eventArgs); e.Handled = true; } } } } #endregion } } |
▶ TestContextMenu.cs
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using System.Windows; using System.Windows.Controls; using System.Windows.Controls.Primitives; namespace TestProject { /// <summary> /// 테스트 컨텍스트 메뉴 /// </summary> public class TestContextMenu : ContextMenu { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 메뉴 항목 클릭 이벤트 - MenuItemClickEvent /// <summary> /// 메뉴 항목 클릭 이벤트 /// </summary> public static readonly RoutedEvent MenuItemClickEvent = EventManager.RegisterRoutedEvent ( "MenuItemClickEvent", RoutingStrategy.Bubble, typeof(RoutedEventArgs), typeof(TestContextMenu) ); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - TestContextMenu() /// <summary> /// 생성자 /// </summary> public TestContextMenu() { AddHandler(MenuItem.ClickEvent, new RoutedEventHandler(MenuItem_Click)); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 메뉴 항목 클릭시 처리하기 - MenuItem_Click(sender, e) /// <summary> /// 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void MenuItem_Click(object sender, RoutedEventArgs e) { Popup popup = Parent as Popup; if(popup != null) { FrameworkElement targetElement = popup.PlacementTarget as FrameworkElement; if(targetElement != null) { targetElement.RaiseEvent(new RoutedEventArgs(TestContextMenu.MenuItemClickEvent, e.Source)); } } } #endregion } } |
▶ 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" xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:local="clr-namespace:TestProject" Width="800" Height="600" Title="Behavior<T> 클래스 : 마우스 왼쪽 버튼 컨텍스트 메뉴 지원 동작 사용하기" FontFamily="나눔고딕코딩" FontSize="16"> <Window.Resources> <local:TestContextMenu x:Key="TestContextMenuKey"> <MenuItem Header="Dock to Fill" Tag="FILL" /> <Separator /> <MenuItem Header="Dock to Side"> <MenuItem Header="Left" Tag="LEFT" /> <MenuItem Header="Top" Tag="TOP" /> <MenuItem Header="Right" Tag="RIGHT" /> <MenuItem Header="Bottom" Tag="BOTTOM" /> </MenuItem> </local:TestContextMenu> </Window.Resources> <i:Interaction.Behaviors> <local:MouseLeftButtonContextMenuSupportBehavior /> </i:Interaction.Behaviors> <Grid> <Button Name="button" Width="100" Height="30" Padding="5" ContextMenu="{DynamicResource TestContextMenuKey}" local:MouseLeftButtonContextMenuSupportBehavior.AllowMouseLeftMouseDown="True" Content="테스트" /> </Grid> </Window> |
▶ MainWindow.xaml.cs
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using System.Windows; using System.Windows.Controls; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); this.button.Click += button_Click; // 실행되지 않는다. AddHandler(TestContextMenu.MenuItemClickEvent, new RoutedEventHandler(TestContextMenu_MenuItemClick)); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 버튼 클릭시 처리하기 - button_Click(sender, e) /// <summary> /// 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void button_Click(object sender, RoutedEventArgs e) { MessageBox.Show("버튼을 클릭했습니다."); } #endregion #region 테스트 컨텍스트 메뉴 항목 클릭시 처리하기 - TestContextMenu_MenuItemClick(sender, e) /// <summary> /// 테스트 컨텍스트 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void TestContextMenu_MenuItemClick(object sender, RoutedEventArgs e) { MenuItem item = e.OriginalSource as MenuItem; MessageBox.Show("컨텍스트 메뉴를 클릭했습니다 : " + item.Header); } #endregion } } |
