How to make customised hot keys in wpf application and perform various operations

Question

How to make customised hot keys in wpf application and perform various operations like making fields editable, save the window, go to a field index.

I am working on a wpf application that holds three windows + 1 main window. I am showing the hot keys shortcuts on the main window so those are visible on all the windows. Now I want to make the application perform the operation based on the keys I am hitting as hotkey combinations.

I have written the code but when I am running the application in debug mode the Window_KeyDown() method gets hit on first ever key hit. For example if I hit Alt+F then the code gets on Alt itself which gets into Keyboard.Modifiers .

1. Code in mainwindow.xaml.cs

   private void Window_KeyDown(object sender, KeyEventArgs e) { e.Handled = true; var modifiers = Keyboard.Modifiers; var key = e.Key;

       if (key == Key.System)
       {
           key = e.SystemKey;
       }
   
       if (key == "C")
       {
           //make all the fields of the Window editable;
       }
       else if ((key == Key.D) && (modifiers == ModifierKeys.Alt))
       {
           //Perform delete operation
       } }
   

2. Code in mainwindow.xaml

<Window x:Class="Namespace.MainWindow" Name="mainWindow"

    mc:Ignorable="d"
    Title="ApplicationName"
    Background="Black"
    Foreground="White"
    KeyDown="Window_KeyDown"
    d:DesignHeight="846.706"
    d:DesignWidth="857.544"
    WindowState="Maximized"
    >

3. On window otherthan mainwindow

I am also trying to perform operation on single key hit. For example when I press 'C' my window fields' property= Isreadonly sets to false, by default I am setting it to true for textbox type field. This style property I am setting under each .XAML file for the three windows.

<Style TargetType="TextBox" x:Key="txtRow1Style"><Setter Property="FontFamily" Value="Segoe UI Semibold"></Setter><Setter Property="Margin" Value="5,0,0,0"></Setter><Setter Property="HorizontalAlignment" Value="Stretch"></Setter><Setter Property="Height" Value="20"></Setter><Setter Property="IsReadOnly" Value="True"></Setter><Style.Triggers><DataTrigger Binding="{Binding NameSpace.MainWindow.Key}" Value="C"><Setter Property="IsReadOnly" Value="False"></Setter></DataTrigger></Style.Triggers></Style>