protected virtual void OnBtnNext_Clicked(BtnNext_ClickedEventArgs e)
 {
     if (BtnNext_Clicked != null)
     {
         BtnNext_Clicked(this, e);
     }
 }
        private BtnNext_ClickedEventArgs OnBtnNext_Clicked()
        {
            BtnNext_ClickedEventArgs args = new BtnNext_ClickedEventArgs();

            OnBtnNext_Clicked(args);

            return(args);
        }