我有一个非常简单的应用程序,我尝试将键盘快捷键绑定到绑定到菜单项的WPF命令。应用程序本身只包含一个Menu
和WebBrowser
控件。InputBinding和WebBrowser控件
当我在WebBrowser
之内时,键盘快捷键不会被路由到WPF菜单。例如,在Web浏览器中关注时键入“Ctrl + O”会显示IE打开页面。此外,在这个应用程序中,除非我的菜单集中(通过键入Alt),输入绑定不会触发。例如,我不能通过单击标题栏来关注WPF窗口,然后键入快捷方式。完整的代码被复制如下:
MainWindow.xaml
<Window x:Class="TestInputBindingsOnMenu.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="600" Width="800">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Menu IsMainMenu="True" x:Name="_mainMenu" Grid.Row="0" />
<WebBrowser Source="http://google.com" Grid.Row="1" />
</Grid>
</Window>
MainWindow.xaml.cs
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
namespace TestInputBindingsOnMenu
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
Initialize();
}
private void Initialize()
{
MenuItem fileMenu = new MenuItem();
MenuItem fileNew = new MenuItem();
MenuItem fileOpen = new MenuItem();
MenuItem fileExit = new MenuItem();
fileMenu.Header = "File";
fileNew.Header = "New";
fileOpen.Header = "Open";
fileExit.Header = "Exit";
fileMenu.Items.Add(fileNew);
fileMenu.Items.Add(fileOpen);
fileMenu.Items.Add(fileExit);
_mainMenu.Items.Add(fileMenu);
var fileNewCommand = CreateCommand("New");
var fileOpenCommand = CreateCommand("Open");
var fileExitCommand = CreateCommand("Exit");
_mainMenu.CommandBindings.Add(new CommandBinding(fileNewCommand, ExecuteNew));
_mainMenu.CommandBindings.Add(new CommandBinding(fileOpenCommand, ExecuteOpen));
_mainMenu.CommandBindings.Add(new CommandBinding(fileExitCommand, ExecuteExit));
fileNew.Command = fileNewCommand;
fileOpen.Command = fileOpenCommand;
fileExit.Command = fileExitCommand;
_mainMenu.InputBindings.Add(new InputBinding(fileNewCommand, new KeyGesture(Key.N, ModifierKeys.Control)));
_mainMenu.InputBindings.Add(new InputBinding(fileOpenCommand, new KeyGesture(Key.O, ModifierKeys.Control)));
_mainMenu.InputBindings.Add(new InputBinding(fileExitCommand, new KeyGesture(Key.F4, ModifierKeys.Alt)));
}
private void ExecuteNew(object sender, ExecutedRoutedEventArgs e)
{
MessageBox.Show("New!!");
}
private void ExecuteOpen(object sender, ExecutedRoutedEventArgs e)
{
MessageBox.Show("Open!!");
}
private void ExecuteExit(object sender, ExecutedRoutedEventArgs e)
{
MessageBox.Show("Exit!!");
}
private static RoutedCommand CreateCommand(string label)
{
return new RoutedCommand(label, typeof(MainWindow));
}
}
}
这主要是我想要的,除非焦点不在浏览器或菜单上。我尝试添加命令绑定到MainWindow,但也没有帮助。在上面的示例中(例如,在向浏览器控件添加绑定之后),如果我键入其中一个命令(弹出一个消息框),然后单击enter,我将不能再执行任何更多快捷方式,直到单击在浏览器内再次控制。 – sohum
尝试将它们添加到浏览器和主窗口! – Bas
我确实将它们添加到浏览器和主窗口以及菜单中。 – sohum