gridview+objectdatasource+aspnetpager如何整合

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前台代码：

<asp:GridView ID="viewIShow" runat="server" DataSourceID="ObjectDataSource1"
                    AllowPaging="True" AutoGenerateColumns="False"
                    OnRowCommand="viewIShow_RowCommand" PageSize="2"
                    OnPageIndexChanging="viewIShow_PageIndexChanging"
                    OnDataBound="viewIShow_DataBound">

                    <Columns>
                        <asp:BoundField DataField="title" HeaderText="名称" />
                        <asp:BoundField DataField="clicknum" HeaderText="播放次数" />
                        <asp:BoundField DataField="addtime" HeaderText="更新日期" />
                        <asp:TemplateField HeaderText="操作">
                            <ItemTemplate>
                                <asp:LinkButton ID="LinkButton1" runat="server" CommandName="up" CommandArgument='<%#Eval("id") %>'>晋级</asp:LinkButton><asp:LinkButton
                                    ID="LinkButton2" runat="server" CommandName="down" CommandArgument='<%#Eval("id") %>'>降级</asp:LinkButton>
                            </ItemTemplate>

                        </asp:TemplateField>
                    </Columns>
                    <PagerTemplate>
                        <table border="0" cellpadding="0" cellspacing="1" >
                            <tr >
                                <td class="pages">
                                    <webdiyer:AspNetPager ID="myPage" runat="server"
                                        OnPageChanged="myPage_PageChanged" ></webdiyer:AspNetPager>
                                </td>
                            </tr>
                        </table>
                    </PagerTemplate>
                </asp:GridView>
                <asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
                    DataObjectTypeName="AUDIOSYSTEM.Model.ishow" DeleteMethod="Delete"
                    InsertMethod="Add" SelectMethod="GetList" TypeName="AUDIOSYSTEM.BLL.ishow"
                    UpdateMethod="Update" OnSelected="ObjectDataSource1_Selected">
                    <SelectParameters>
                        <asp:Parameter Name="type" Type="String" DefaultValue="week" />
                        <asp:ControlParameter ControlID="txtStartTime"
                            DefaultValue="2000/01/01 00:00:00" Name="start"
                            PropertyName="Text" Type="DateTime" />
                        <asp:ControlParameter ControlID="txtEndTime" Name="end" PropertyName="Text"
                            Type="DateTime" DefaultValue="2500/01/01 00:00:00" />
                    </SelectParameters>
                    <DeleteParameters>
                        <asp:Parameter Name="videoId" Type="Int32" />
                        <asp:Parameter Name="type" Type="String" DefaultValue="week" />
                    </DeleteParameters>
                </asp:ObjectDataSource>

后台代码：

protected void myPage_PageChanged(object sender, EventArgs e)
         {
             GridViewRow pagerRow = viewIShow.BottomPagerRow;
             AspNetPager myPage = (AspNetPager)pagerRow.Cells[0].FindControl("myPage");
             viewIShow.PageIndex = myPage.CurrentPageIndex - 1;
         }

         protected void viewIShow_DataBound(object sender, EventArgs e)
         {
             GridViewRow pagerRow = viewIShow.BottomPagerRow;
             AspNetPager myPage = (AspNetPager)pagerRow.Cells[0].FindControl("myPage");

             GridView view = (GridView)sender;
             myPage.PageSize = view.PageSize;
             myPage.CurrentPageIndex = view.PageIndex +1; //GridView分页索引是从0开始，AspNetPager是从1开始的
         }

         protected void ObjectDataSource1_Selected(object sender, ObjectDataSourceStatusEventArgs e)
         {
             DataSet ds = (DataSet)e.ReturnValue; //ObjectDataSource查询方法返回什么类型就转成什么类型

             GridViewRow pagerRow = viewIShow.BottomPagerRow;
             AspNetPager myPage = (AspNetPager)pagerRow.Cells[0].FindControl("myPage");

             if (ds == null)
             {
                 myPage.RecordCount = 0;
             }
             else
             {
                 myPage.RecordCount = ds.Tables[0].Rows.Count;
             }
         }

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