Ctrl+F4 opens the combo box

2 posts, 0 answers
  1. Patrick
    Patrick avatar
    396 posts
    Member since:
    Aug 2012

    Posted 04 Aug 2017 Link to this post


    When the focus is on a RadComboBox, pressing Ctrl+F4 opens it.

    From the documentation, F4 should open / close it, not Ctrl+F4.

    This bug is annoying, because Ctrl+F4 is the standard shortcut to close a tab or a pane.

  2. Kalin
    Kalin avatar
    1312 posts

    Posted 09 Aug 2017 Link to this post

    Hello Patrick,

    RadComboBox is designed to behave identical to the WPF ComboBox in this scenario. However you could easily modify this behavior by inheriting from RadComboBox and overriding the HandleKeyDown method:

    public class CustomComboBox: RadComboBox
        protected override bool HandleKeyDown(Key systemKey, int platformKeyCode)
            if (systemKey == Key.F4 && Keyboard.Modifiers == ModifierKeys.Control)
                return false;
            return base.HandleKeyDown(systemKey, platformKeyCode);

    Hope this will help you.

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