could not capture down arrow in combobox in wpf

[dashingsidds]

Hi Experts, I have a combobox on a window in wpf and i am trying to capture the down arrow key of this combobox but i am not able to do so. The following is the only code i have for the combobox.

<ComboBox Height="23" HorizontalAlignment="Left" Margin="10,10,0,0" Name="comboBox1" VerticalAlignment="Top" Width="120"
PreviewKeyDown="comboBox1_PreviewKeyDown" KeyDown="comboBox1_KeyDown" IsEditable="True"/>

C#

private void comboBox1\_PreviewKeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Down)
            MessageBox.Show("hi");
    }

    private void comboBox1\_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Down)
            MessageBox.Show("hi");
    }

The event is not even hit when i press down arrow key. Please help! Thanks in advance! Regards, Samar

[dashingsidds]

Hi Guys, I got the answer. The PreviewKeyUp event worked for the down arrow. Thanks anyways for looking into it for me. But can anyone please explain as to y the PreviewKeyDown event did not get fired for down arrow?? Regards, Dhaval

[Abhinav S]

Subclassing your combobox could have been an alternate - see here[^]. This also explains why you could not get anything in KeyDown.

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