protected WebControl CreateHiddenImage(string id, string imageName) { var result = RenderUtils.CreateImage(); result.ID = id; result.Style.Add(HtmlTextWriterStyle.Position, "absolute"); result.Style.Add(HtmlTextWriterStyle.Visibility, "hidden"); result.Style.Add(HtmlTextWriterStyle.Top, "-100px"); RenderHelper.AssignImageToControl(imageName, result); return(result); }