public override void Focus()
 {
     if (Widget.Loaded && WinFormsControl.IsHandleCreated)
     {
         WinFormsControl.Focus();
     }
     else
     {
         Widget.LoadComplete += Widget_LoadComplete;
     }
 }
 void Widget_LoadComplete(object sender, EventArgs e)
 {
     Widget.LoadComplete -= Widget_LoadComplete;
     WinFormsControl.Focus();
 }