c#怎么实现下一页

c#怎么实现下一页

参考下列C# 代码： 

<PagerTemplate>

      <table>

        <tr>

          <td > 第<asp:Label ID="lblPageIndex" runat="server" Text="<%#((GridView)Container.Parent.Parent).PageIndex + 1 %>"></asp:Label>页

           共<asp:Label ID="lblPageCount" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageCount %>"></asp:Label>页

           <asp:LinkButton ID="btnFirst" runat="server" CausesValidation="False" CommandArgument="First" CommandName="Page" Text="首页"></asp:LinkButton>

          <asp:LinkButton ID="btnPrev" runat="server" CausesValidation="False" CommandArgument="Prev"

          CommandName="Page" Text="上一页"></asp:LinkButton>

           <asp:LinkButton ID="btnNext" runat="server" CausesValidation="False" CommandArgument="Next"

            CommandName="Page" Text="下一页"></asp:LinkButton>

             <asp:LinkButton ID="btnLast" runat="server" CausesValidation="False" CommandArgument="Last"

            CommandName="Page" Text="尾页"></asp:LinkButton>

          <asp:TextBox ID="txtNewPageIndex" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageIndex + 1%>" Width="20px"></asp:TextBox>

          <asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-1" CommandName="Page" Text="GO"></asp:LinkButton>

         </td>

      </tr>

    </table>

</PagerTemplate>

 protected void PageIndexChanging(object sender, GridViewPageEventArgs e)

    {

        GridView gvw = (GridView)sender;

        if (e.NewPageIndex < 0)

        {

            TextBox pageNum = (TextBox)gvw.BottomPagerRow.FindControl("txtNewPageIndex");

            int Pa = int.Parse(pageNum.Text);

            if (Pa <= 0)

            {

                gvw.PageIndex = 0;

            }

            else

            {

                gvw.PageIndex = Pa - 1;

            }

        }

        else

        {

            gvw.PageIndex = e.NewPageIndex;

        }

        GetBind();//你绑定数据的方法

    }