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Posted on 2010-11-29 16:55 Hero 閱讀(718) 評論(0) 編輯 收藏 引用 所屬分類: C#積累
1 using System;
2using System.Windows;
3using System.Windows.Controls;
4using System.Windows.Input;
5using System.Windows.Media;
6
7namespace Petzold.CommandTheMenu
8   {
9 public class CommandTheMenu : Window
10  {
11 TextBlock text;
12
13 [STAThread]
14 public static void Main()
15 {
16 Application app = new Application();
17 app.Run(new CommandTheMenu());
18 }
19 public CommandTheMenu()
20 {
21 Title = "Command the Menu";
22
23 // Create DockPanel.
24 DockPanel dock = new DockPanel();
25 Content = dock;
26
27 // Create Menu docked at top.
28 Menu menu = new Menu();
29 dock.Children.Add(menu);
30 DockPanel.SetDock(menu, Dock.Top);
31
32 // Create TextBlock filling the rest.
33 text = new TextBlock();
34 text.Text = "Sample clipboard text";
35 text.HorizontalAlignment = HorizontalAlignment.Center;
36 text.VerticalAlignment = VerticalAlignment.Center;
37 text.FontSize = 32; // ie, 24 points
38 text.TextWrapping = TextWrapping.Wrap;
39 dock.Children.Add(text);
40
41 // Create Edit menu.
42 MenuItem itemEdit = new MenuItem();
43 itemEdit.Header = "_Edit";
44 menu.Items.Add(itemEdit);
45
46 // Create items on Edit menu.
47 MenuItem itemCut = new MenuItem();
48 itemCut.Header = "Cu_t";
49 itemCut.Command = ApplicationCommands.Cut;
50 itemEdit.Items.Add(itemCut);
51
52 MenuItem itemCopy = new MenuItem();
53 itemCopy.Header = "_Copy";
54 itemCopy.Command = ApplicationCommands.Copy;
55 itemEdit.Items.Add(itemCopy);
56
57 MenuItem itemPaste = new MenuItem();
58 itemPaste.Header = "_Paste";
59 itemPaste.Command = ApplicationCommands.Paste;
60 itemEdit.Items.Add(itemPaste);
61
62 MenuItem itemDelete = new MenuItem();
63 itemDelete.Header = "_Delete";
64 itemDelete.Command = ApplicationCommands.Delete;
65 itemEdit.Items.Add(itemDelete);
66
67 // Add command bindings to window collection.
68 CommandBindings.Add(new CommandBinding(ApplicationCommands.Cut,
69 CutOnExecute, CutCanExecute));
70 CommandBindings.Add(new CommandBinding(ApplicationCommands.Copy,
71 CopyOnExecute, CutCanExecute));
72 CommandBindings.Add(new CommandBinding(ApplicationCommands.Paste,
73 PasteOnExecute, PasteCanExecute));
74 CommandBindings.Add(new CommandBinding(ApplicationCommands.Delete,
75 DeleteOnExecute, CutCanExecute));
76
77
78
79 添加自定義鍵盤快捷鍵#region 添加自定義鍵盤快捷鍵
80 InputGestureCollection restoreGestures = new InputGestureCollection();
81 restoreGestures.Add( new KeyGesture(Key.R, ModifierKeys.Control));//CTRL + R
82 //創建Command，綁定快捷鍵
83 RoutedUICommand restoreUICommand = new RoutedUICommand("_Restore", "Restore", this.GetType(), restoreGestures);
84 //RoutedCommand restoreUICommand = new RoutedUICommand( "_Restore", "Restore", this.GetType(), restoreGestures );
85 //添加到當前窗口的CommandBindings集合中
86 this.CommandBindings.Add( new CommandBinding(restoreUICommand, RestoreExecute) );
87 //添加菜單，綁定到自定義的命令中
88 MenuItem itemRestore = new MenuItem();
89 itemRestore.Command = restoreUICommand;
90 itemEdit.Items.Add(itemRestore);
91 #endregion
92 }
93
94 void RestoreExecute( object sender, ExecutedRoutedEventArgs e )
95 {
96 this.text.Text = "John";
97 }
98
99 void CutCanExecute(object sender, CanExecuteRoutedEventArgs args)
100 {
101 args.CanExecute = text.Text != null && text.Text.Length > 0;
102 }
103 void PasteCanExecute(object sender, CanExecuteRoutedEventArgs args)
104 {
105 args.CanExecute = Clipboard.ContainsText();
106 }
107 void CutOnExecute(object sender, ExecutedRoutedEventArgs args)
108 {
109 ApplicationCommands.Copy.Execute( null, this );
110 ApplicationCommands.Delete.Execute(null, this);
111 }
112 void CopyOnExecute(object sender, ExecutedRoutedEventArgs args)
113 {
114 Clipboard.SetText(text.Text);
115 }
116 void PasteOnExecute(object sender, ExecutedRoutedEventArgs args)
117 {
118 text.Text = Clipboard.GetText();
119 }
120 void DeleteOnExecute(object sender, ExecutedRoutedEventArgs args)
121 {
122 text.Text = null;
123 }
124 }
125 }
126
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