DYN-8163, DYN-8164 Modify NoteView.xaml.cs to allow for underscore ch…

…aracter and bullets from numpad "-" character (#15762)

src/DynamoCoreWpf/Views/Core/NoteView.xaml.cs

@@ -23,7 +23,7 @@ public partial class NoteView : IViewModelView<NoteViewModel>
         /// <summary>
         /// Special keys definition in note
         /// </summary>
-        internal Key[] specialKeys = { Key.OemMinus, Key.Tab, Key.Enter };
+        internal Key[] specialKeys = { Key.OemMinus, Key.Subtract, Key.Tab, Key.Enter };
 
         public NoteViewModel ViewModel { get; private set; }
 
@@ -210,7 +210,7 @@ private void noteTextBox_LostFocus(object sender, RoutedEventArgs e)
 
         private void noteTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
         {
-            if (!specialKeys.Contains(e.Key))
+            if (!specialKeys.Contains(e.Key) || Keyboard.Modifiers == System.Windows.Input.ModifierKeys.Shift)
             {
                 return;
             }
@@ -232,6 +232,9 @@ private void noteTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
                         case Key.OemMinus:
                             textBox.Text = BulletDashHandler(text, caretIndex);
                             break;
+                        case Key.Subtract:
+                            textBox.Text = BulletDashHandler(text, caretIndex);
+                            break;
                         case Key.Tab:
                             textBox.Text = BulletTabHandler(text, caretIndex);
                             break;