采用自定义分页的gridview 为什么无法触发PageIndexChanging 事件

Question

allowpaging="true"

protected void chexiaopjinf_gv_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.Pager)
        {
            Label label_Index = new Label();
            Label label_go = new Label();
            Label label_page = new Label();

            TextBox PageIndex_tb = new TextBox();
            LinkButton Button_GO = new LinkButton();

            LinkButton Button_IndexFirst = new LinkButton();
            LinkButton Button_IndexLast = new LinkButton();
            LinkButton Button_IndexNext = new LinkButton();
            LinkButton Button_IndexPrevious = new LinkButton();

            label_go.Text = "      转到第";
            label_page.Text = " 页      ";

            PageIndex_tb.Width = Unit.Pixel(20);
            PageIndex_tb.Font.Name = "宋体";
            PageIndex_tb.Font.Size = FontUnit.Parse("9pt");

            Session["canceledpageindex"] = PageIndex_tb;

            Button_GO.Text = "GO";
            Button_GO.CommandName = "GO";
            Button_GO.ForeColor = System.Drawing.Color.White;
            Button_GO.Click += new EventHandler(PageButtonClick);

            Button_IndexFirst.Text = "第一页 ";
            Button_IndexFirst.CommandName = "first";
            Button_IndexFirst.ForeColor = System.Drawing.Color.White;
            Button_IndexFirst.Click += new EventHandler(PageButtonClick);

            Button_IndexNext.Text = "   下一页 ";
            Button_IndexNext.CommandName = "next";
            Button_IndexNext.ForeColor = System.Drawing.Color.White;

            Button_IndexNext.Click += new EventHandler(PageButtonClick);

            Button_IndexPrevious.Text = "上一页 ";
            Button_IndexPrevious.CommandName = "previous";
            Button_IndexPrevious.ForeColor = System.Drawing.Color.White;
            Button_IndexPrevious.Click += new EventHandler(PageButtonClick);

            Button_IndexLast.Text = "最末页 ";
            Button_IndexLast.CommandName = "last";
            Button_IndexLast.ForeColor = System.Drawing.Color.White;
            Button_IndexLast.Click += new EventHandler(PageButtonClick);

            label_Index.Text = "当前为第" + (chexiaopjinf_gv.PageIndex + 1) + "页, 共有" + ((GridView)sender).PageCount + "页";
            e.Row.Controls[0].Controls[0].Controls[0].Controls[0].Controls.AddAt(0, (Button_IndexFirst));
            e.Row.Controls[0].Controls[0].Controls[0].Controls[0].Controls.AddAt(1, (Button_IndexPrevious));

            int controlTmp = e.Row.Controls[0].Controls[0].Controls[0].Controls.Count - 1;
            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(Button_IndexNext);
            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(Button_IndexLast);

            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(label_Index);

            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(label_go);
            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(PageIndex_tb);
            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(label_page);
            e.Row.Controls[0].Controls[0].Controls[0].Controls[controlTmp].Controls.Add(Button_GO);

            //e.Row.Controls[0].Controls.Add(label_Index);
        }
    }

    protected void PageButtonClick(object sender, EventArgs e)
    {
        LinkButton clickedButton = ((LinkButton)sender);

        if (clickedButton.CommandName == "first")
        {
            chexiaopjinf_gv.PageIndex = 0;
        }
        else if (clickedButton.CommandName == "next")
        {
            if (chexiaopjinf_gv.PageIndex < chexiaopjinf_gv.PageCount - 1)
            {
                chexiaopjinf_gv.PageIndex += 1;
            }
        }
        else if (clickedButton.CommandName == "previous")
        {
            if (chexiaopjinf_gv.PageIndex >= 1)
            {
                chexiaopjinf_gv.PageIndex -= 1;
            }
        }
        else if (clickedButton.CommandName == "last")
        {
            chexiaopjinf_gv.PageIndex = chexiaopjinf_gv.PageCount - 1;
        }
        else if (clickedButton.CommandName == "GO")//转到某一页
        {
            int lipageidx;

            if (((TextBox)Session["canceledpageindex"]).Text.Trim() == "")
            {
                lipageidx = 1;
            }
            else
            {
                int tIndex = int.Parse(((TextBox)Session["canceledpageindex"]).Text.Trim());

                if (tIndex > chexiaopjinf_gv.PageCount)
                {
                    tIndex = chexiaopjinf_gv.PageCount;
                }
                else if (tIndex < 1)
                {
                    tIndex = 1;
                }

                lipageidx = tIndex - 1;

            }

            chexiaopjinf_gv.PageIndex = lipageidx;

        }

        if (Session["chexiaopjinfquerysql"].ToString() != "")
        {
            chexiaopjinfSqlDataSource.SelectCommand = Session["chexiaopjinfquerysql"].ToString();

        }

        chexiaopjinf_gv.DataBind();
    }

 

调试时，始终无法执行PageIndexChanging 的代码，请问为什么？

Answer 1

GridView自定义分页做法，通常是自己算每页显示几笔，目前在第几页后

去DB捞从哪一笔到哪一笔的数据，然后GridView重新绑定，过程中没在触发PageIndexChanging 事件

---

Shadowと愉快なコード達

Answer 2

GridView自定义分页做法，通常是自己算每页显示几笔，目前在第几页后

去DB捞从哪一笔到哪一笔的数据，然后GridView重新绑定，过程中没在触发PageIndexChanging 事件

---

Shadowと愉快なコード達

有什么办法可以出发这个事件呢？