/// <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", "");

            }

        }