url重写网站，删除数据后重新绑定gridview地址又变回真实的了，怎么办

Question

url重写网站，删除数据后重新绑定gridview地址又变回真实的了，怎么办页面源
<asp:Button ID="btnDel"  runat="server"  Text="删除" OnCommand="btnDel_Click" OnClientClick="if(confirm('确定删除?'))return true;else return false;" CommandName='<%# Eval("id")%>' />
 private void Bind()
    {
        GridView1.DataSource = bll.GetNews();
        GridView1.DataBind();
    }
 protected void btnDel_Click(object sender, CommandEventArgs e)
    {
        bll.Delete(Convert.ToInt32(e.CommandName));
        Bind();
    }
web.config<RewriterRule>
     <LookFor>~/newslist.html</LookFor>
     <SendTo>~/news.aspx</SendTo>
</RewriterRule>

Answer 1

    /// <summary>
    /// URL重写以后保持postback地址
    /// </summary>
    public class PageBase : Page
    {
        //// <summary>
        ///  重写默认的HtmlTextWriter方法，修改form标记中的value属性，使其值为重写的URL而不是真实URL。
        /// </summary>
        /// <param name="writer"></param>
        protected override void Render(HtmlTextWriter writer)
        {            if (writer is System.Web.UI.Html32TextWriter)
            {
                writer = new FormFixerHtml32TextWriter(writer.InnerWriter);
            }
            else
            {
                writer = new FormFixerHtmlTextWriter(writer.InnerWriter);
            }            base.Render(writer);        }
    }    public class FormFixerHtml32TextWriter : System.Web.UI.Html32TextWriter
    {
        private string _url; // 假的URL        public FormFixerHtml32TextWriter(TextWriter writer)
            : base(writer)
        {
            _url = HttpContext.Current.Request.RawUrl;
        }        public override void WriteAttribute(string name, string value, bool encode)
        {
            // 如果当前输出的属性为form标记的action属性，则将其值替换为重写后的虚假URL
            if (_url != null && string.Compare(name, "action", true) == 0)
            {
                value = _url;
            }
            base.WriteAttribute(name, value, encode);
        }
    }    public class FormFixerHtmlTextWriter : System.Web.UI.HtmlTextWriter
    {
        private string _url;
        public FormFixerHtmlTextWriter(TextWriter writer)
            : base(writer)
        {
            _url = HttpContext.Current.Request.RawUrl;
        }        public override void WriteAttribute(string name, string value, bool encode)
        {
            if (_url != null && string.Compare(name, "action", true) == 0)
            {
                value = _url;
            }            base.WriteAttribute(name, value, encode);
        }
    }页面继承PageBase类.