/// <summary>
/// This is the method that responds to the KeyDown event.
/// </summary>
/// <param name="e">Event arguments</param>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (e.Handled)
{
return;
}
Key key = e.Key;
switch (key)
{
case Key.Down:
case Key.Up:
if (CurrentSelection != null)
{
// Only for non vertical layout Up/Down open the submenu
Panel itemsHost = ItemsHost;
bool isVertical = itemsHost != null && itemsHost.HasLogicalOrientation && itemsHost.LogicalOrientation == Orientation.Vertical;
if (!isVertical)
{
CurrentSelection.OpenSubmenuWithKeyboard();
e.Handled = true;
}
}
break;
case Key.Left:
case Key.Right:
if (CurrentSelection != null)
{
// Only for vertical layout Left/Right open the submenu
Panel itemsHost = ItemsHost;
bool isVertical = itemsHost != null && itemsHost.HasLogicalOrientation && itemsHost.LogicalOrientation == Orientation.Vertical;
if (isVertical)
{
CurrentSelection.OpenSubmenuWithKeyboard();
e.Handled = true;
}
}
break;
}
}