Combobox How to keep box expandend if KeyPadNavigation is used

  • Hi all,

    I have a problem using the combo boxes with the keypad navigation define.

    If i select a ComboBox the popup of it will shown but collapses after I Release the button.

    How can i handle it that i can open the popup with a Key_Select and then navigate up and down through the Items in the Combobox (expanded?)

    I already tried with event filters but no luck for now.

    Many thanks in advance