菜單快捷鍵範圍

Question

當我點擊菜單條，然後按快捷鍵它的作品，但它不工作，否則。有什麼可以設置快捷鍵的範圍嗎？

XAML：

<Window x:Class="NewGUI_WPF.MainWindow" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:common="clr-namespace:Common;assembly=RecentFileListLib" 
    Title="Sezor" Height="Auto" Width="Auto" WindowStartupLocation="Manual" Icon="/NewGUI_WPF;component/Images/i161.ICO" WindowStyle="SingleBorderWindow" Focusable="False" ResizeMode="CanResize" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" d:DesignHeight="243" d:DesignWidth="314" SizeToContent="Manual" WindowState="Maximized"> 

<Window.CommandBindings> 
    <CommandBinding Command="Save" Executed="SaveCommand" /> 
    <CommandBinding Command="Open" Executed="OpenCommand" /> 
</Window.CommandBindings> 

<Grid> 
    <Menu Height="23" Name="main_menu" VerticalAlignment="Top" HorizontalAlignment="Stretch" IsMainMenu="True"> 
     <MenuItem Name="MI_Case" Header="Case"> 
      <MenuItem Header="Open" Command="Open"> 
       <MenuItem.Icon> 
        <Image Height="16" Width="16" Source="/NewGUI_WPF;component/Images/openHS.png" /> 
       </MenuItem.Icon> 
      </MenuItem> 
      <MenuItem Header="Save" Name="MainMenu_File_Save" Command="Save"> 
       <MenuItem.Icon> 
        <Image Height="16" Width="16" Source="/NewGUI_WPF;component/Images/saveHS.png" /> 
       </MenuItem.Icon> 
      </MenuItem> 
      <MenuItem Header="Save as" Name="MainMenu_File_SaveAs" Click="MainMenu_File_SaveAs_Click" /> 
      <common:RecentFileList x:Name="RecentFileList" /> 
      <MenuItem Header="Quit" Click="MainMenu_File_Quit_Click" /> 
     </MenuItem> 
     <MenuItem Header="View"> 
      <MenuItem Header="Input File" Click="MainMenu_View_InputFile_Click" /> 
      <MenuItem Header="Mesh File" Click="MainMenu_View_meshFile_Click" /> 
      <MenuItem Name="MainMenu_View_Summary" Header="Summary" Click="MainMenu_View_summary_Click" /> 
     </MenuItem> 
     <MenuItem Header="Define" > 
      <MenuItem Header="Input File" Click="MainMenu_Define_InputFile_Click" Name="MainMenu_Define_InputFile" /> 
      <MenuItem Header="Mesh File" Click="MainMenu_Define_MeshFile_Click" Name="MainMenu_Define_MeshFile" /> 
      <MenuItem Header="Simulation File" Click="MainMenu_Define_SimulFile_Click" Name="MainMenu_Define_SimulFile" /> 
      <MenuItem Header="Boundaries" Click="MainMenu_Define_BC_Click" /> 
      <MenuItem Header="Initials" Click="MainMenu_Define_Initials_Click" /> 
      <MenuItem Header="Spatial Discretization" Click="MainMenu_Define_SpatDis_Click" />     
      <MenuItem Header="Flow" Click="MainMenu_Define_Flow_Click" /> 
      <MenuItem Header="Material" Click="MainMenu_Define_Material" /> 
      <MenuItem Header="Algoritm" Click="MainMenu_Define_Algoritm" /> 
      <MenuItem Header="Gradient Reconstruction"> 
       <RadioButton Content="Least-Squares" Checked="Least_Squares_Checked" Name="rad_GR_LS" /> 
       <RadioButton Content="Green-Gauss" Click="Green_Gauss_Checked" Name="rad_GR_GG" /> 
      </MenuItem> 
     </MenuItem> 
     <MenuItem Header="Run" > 
      <MenuItem Header="Simulation" Click="MainMenu_Run_Simulation_Click" /> 
     </MenuItem> 
    </Menu> 
    <Frame Height="Auto" HorizontalAlignment="Left" Margin="40,60,30,20" Name="frm_summary" VerticalAlignment="Top" Width="Auto" NavigationUIVisibility="Hidden" /> 
    <StatusBar Height="23" Name="statusBar1" VerticalAlignment="Bottom" Margin="0"> 
     <TextBlock Name="statBar_text_1"></TextBlock> 
    </StatusBar> 
</Grid> 

代碼：

private void OpenCommand(object sender, ExecutedRoutedEventArgs e) {...} 
private void SaveCommand(object sender, ExecutedRoutedEventArgs e) {...} 

Answer 1

在Window標記刪除Focusable="False"。

Answer 2

看起來你需要添加CanExecute到CommandBinding和後面方法的相應的代碼。

這是一個最小化的演示，連接Control-S以啓動Help命令。

的XAML：

<Window x:Class="stackoverflow___scope_of_menu_shortcut_key.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     Title="MainWindow" Height="350" Width="525"> 

    <Window.CommandBindings> 
     <CommandBinding Command="Help" CanExecute="HelpCanExecute" Executed="HelpExecuted"/> 
    </Window.CommandBindings> 

    <Window.InputBindings> 
     <KeyBinding Command="Help" Key="S" Modifiers="Control"/> 
    </Window.InputBindings> 

    <Menu> 
     <MenuItem Header="File"> 
      <MenuItem Header="Help" Name="HelpMenu" Command="Help"/> 
     </MenuItem> 
    </Menu> 

</Window> 

的背後代碼：

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

namespace stackoverflow___scope_of_menu_shortcut_key 
{ 
    /// <summary> 
    /// Interaction logic for MainWindow.xaml 
    /// </summary> 
    public partial class MainWindow : Window 
    { 
     public MainWindow() 
     { 
      InitializeComponent(); 
     } 

     private void HelpCanExecute(object sender, CanExecuteRoutedEventArgs e) 
     { 
      e.CanExecute = true; 
     } 

     private void HelpExecuted(object sender, ExecutedRoutedEventArgs e) 
     { 
      System.Diagnostics.Process.Start("http://www.microsoft.com"); 
     } 
    } 
} 

請注意，如果您註釋掉行：

e.CanExecute = true; 

鍵綁定不再起作用。

下面是您的示例，將其簡化爲最低限度。這個作品在我的系統上：

XAML：

<Window x:Class="stackoverflow___scope_of_menu_shortcut_key.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     Title="MainWindow" Height="350" Width="525"> 

    <Window.CommandBindings> 
     <CommandBinding Command="Save" Executed="MyCommand" /> 
    </Window.CommandBindings> 

    <MenuItem Header="Save" Command="ApplicationCommands.Save"/> 

</Window> 

後面的代碼：

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

namespace stackoverflow___scope_of_menu_shortcut_key 
{ 
    /// <summary> 
    /// Interaction logic for MainWindow.xaml 
    /// </summary> 
    public partial class MainWindow : Window 
    { 
     public MainWindow() 
     { 
      InitializeComponent(); 
     } 

     private void MyCommand(object sender, ExecutedRoutedEventArgs e) 
     { 
      System.Diagnostics.Process.Start("http://www.microsoft.com"); 
     } 
    } 
}