Ctrl+F4 opens the combo box

[Patrick]

Hello,

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.

[Kalin]

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.

Regards,
Kalin
Progress Telerik