How to navigate between controls on KeyDown event.

Question

I'm trying to have a KeyDown function that makes the focus move to the next control.

I've tried this but it throws me an error:

private void Obj_KeyDown(object sender, KeyRoutedEventArgs e)
    {
        if (e.Key.ToString() == "Enter")  FocusManager.TryMoveFocus(FocusNavigationDirection.Down);
    }

Error:

System.Runtime.InteropServices.COMException: 'Catastrophic failure (0x8000FFFF (E_UNEXPECTED))'

Any hint on how can I make this work?

Thanks,
David

Answer 1

Check if a workaround works for you (https://github.com/microsoft/microsoft-ui-xaml/issues/5593):

. . .
var fneo = new FindNextElementOptions { SearchRoot = tb.XamlRoot.Content };
FocusManager.TryMoveFocus(FocusNavigationDirection.Next, fneo);
. . .

Use an appropriate control for tb.