【Vegas原创】继承，重写~

例：继承Web Parts，重写webparts中Reder方法：

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI.WebControls.WebParts;

namespace PlatForm.Common
{
    public class AjaxWebPart:WebPart
    {
        protected override void Render(System.Web.UI.HtmlTextWriter writer)
        {
            //base.Render(writer);
        }
    }
}