protected override void LoadViewState(object savedState)
        {
            RetinaImageViewState viewstate = (RetinaImageViewState)savedState;

            base.LoadViewState(viewstate.RetinaImageBaseViewState);
            FormatString   = viewstate.FormatString;
            AlternateSizes = viewstate.AlternateSizes;
        }
        protected override object SaveViewState()
        {
            RetinaImageViewState viewstate = new RetinaImageViewState();

            viewstate.RetinaImageBaseViewState = base.SaveViewState();
            viewstate.FormatString             = FormatString;
            viewstate.AlternateSizes           = AlternateSizes;
            return(viewstate);
        }
 protected override object SaveViewState()
 {
     RetinaImageViewState viewstate = new RetinaImageViewState();
     viewstate.RetinaImageBaseViewState = base.SaveViewState();
     viewstate.FormatString = FormatString;
     viewstate.AlternateSizes = AlternateSizes;
     return viewstate;
 }