feat: MessageBox add keyDown Esc close this

Author: yanjinhuagood

src/WPFDevelopers.Shared/Controls/MessageBox/WDMessageBox.cs

@@ -6,6 +6,7 @@
 using System;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Shapes;
 
@@ -223,6 +224,16 @@ private void CloseButton_Click(object sender, RoutedEventArgs e)
             Close();
         }
 
+        protected override void OnKeyDown(KeyEventArgs e)
+        {
+            base.OnKeyDown(e);
+            if (e.Key == Key.Escape)
+            {
+                Close();
+                e.Handled = true;
+            }
+        }
+
         private void DisplayButtons(MessageBoxButton button)
         {
             switch (button)