[問題] 對自訂控制項的疑問?

[a2975313 (GN)]

 public class GridVieweE : System.Web.UI.WebControls.GridView, INamingContainer
    {
        private System.Web.UI.WebControls.Panel pnlScroll ;

        /// <summary>
        /// 設定滾動容器的寬度
        /// </summary>
        public Unit ScrollWidth
        {
            get{ return pnlScroll.Width; }
            set{ pnlScroll.Width = value; }
        }

        /// <summary>
        /// 設定滾動容器的高度
        /// </summary>
        public Unit ScrollHeight
        {
            get{ return pnlScroll.Height; }
            set( pnlScroll.Height = value; }
        }
        protected override void CreateChildControls()
        {
            pnlScroll = new System.Web.UI.WebControls.Panel();
            Control parent = this.Parent;

            if (DesignMode == false)
            {
                try
                {
                    Control gridView = this;
                    parent.Controls.Remove(gridView);

                    pnlScroll.Style.Add("width", this.ScrollWidth.ToString());
                    pnlScroll.Style.Add("height", this.ScrollHeight.ToString());
                    pnlScroll.Style.Add("overflow", "auto");

                    pnlScroll.Controls.Add(gridView);
                    parent.Controls.Add(pnlScroll);

                    ChildControlsCreated = true;
                }
                catch
                {
                }
            }
            base.CreateChildControls();
        }
    }


這段是我從網路上找到的code，他的用意是把舊的GridView加進Panel裡面，然後編譯成
新的GridviewE，簡單講就是讓GridView有捲軸的功能，可是我編譯後用起來都沒效果@@
不知道哪裡錯了~"~
請大家幫我看一下...

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 114.33.182.163