AjaxControlToolkit.SlideShowExtender.OnInit C# (CSharp) Method

        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);

            var image = (System.Web.UI.WebControls.Image)TargetControl;
            ImageHeight = (int)image.Height.Value;
            ImageWidth = (int)image.Width.Value;
        }