分页（一）

第一种：使用GridView自带分页，这种是最简单的分页方法。

----------前台代码----------

 <asp:GridView ID="GridView1" runat="server" AllowPaging="True"
            PageSize="5" onpageindexchanging="GridView1_PageIndexChanging"
            onrowdatabound="GridView1_RowDataBound" ShowFooter="True">
            <PagerSettings FirstPageText="l&amp;lt;" LastPageText="&amp;gt;l"
                Mode="NextPreviousFirstLast" />
            <PagerTemplate>
                <asp:Button ID="Button1" runat="server" CommandArgument="First"
                    CommandName="page" Text="|&lt;" Width="30px" />&nbsp
                <asp:Button ID="Button2" runat="server" CommandArgument="Prev"
                    CommandName="page" Text="&lt;" Width="30px" />&nbsp
                <asp:Button ID="Button3" runat="server" CommandArgument="Next"
                    CommandName="page" Text="&gt;" Width="30px" />&nbsp
                <asp:Button ID="Button4" runat="server" CommandArgument="Last"
                    CommandName="page" Text="&gt;|" Width="30px" />
                <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
            </PagerTemplate>
   </asp:GridView>

----------------后台代码-------------------

  protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindStudent();
            }
        }

        private void BindStudent()
        {
            string sql = "select * from student";
            DataTable dt = sqlhelper.ExecuteDataTable(sql);
            this.GridView1.DataSource = dt;
            this.GridView1.DataBind();
             this.GridView2.DataSource = dt;
             this.GridView2.DataBind();
        }

        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.Pager)
            {
          
                 (e.Row.Cells[0].FindControl("Label1") as Label).Text = "这是第"+ (GridView1.PageIndex + 1).ToString() + "页，共" + GridView1.PageCount + "页";
            }
        }

        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            if (e.NewPageIndex >= 0)
            {
                this.GridView1.PageIndex = e.NewPageIndex;
                this.BindStudent();
            }
        }

操作完成后实现以下效果：