protected override void OnKeyUp(KeyEventArgs e)
{
if (!IsDropDownOpen && HandleSpaceEnterUp)
{
if (e.OriginalSource == this ||
e.OriginalSource == _partToggleButton)
{
if (e.Key == Key.Space ||
e.Key == Key.Enter)
{
IsDropDownOpen = true;
RibbonHelper.NavigateToNextMenuItemOrGallery(this, -1, BringIndexIntoView);
e.Handled = true;
}
}
}
HandleSpaceEnterUp = false;
base.OnKeyUp(e);
}