隐藏和显示服务器端控件以及Html控件

 /// <summary>
        /// 隐藏控件
        /// </summary>
        /// <param name="control"></param>
        protected void HideControl(Object control)
        {
            if (control is WebControl)
            {
                ((WebControl)control).Style.Add("display", "none");
            }

            if (control is HtmlControl)
            {
                ((HtmlControl)control).Style.Add("display", "none");
            }
        }
        /// <summary>
        /// 显示服务器端控件
        /// </summary>
        /// <param name="control"></param>
        protected void ShowControl(Object control)
        {
            if (control is WebControl)
            {
                ((WebControl)control).Style.Add("display", "");
            }

            if (control is HtmlControl)
            {
                ((HtmlControl)control).Style.Add("display", "");
            }
        }