sharepoint实现假分页

SPSecurity.RunWithElevatedPrivileges(delegate
            {
                using (var site = new SPSite(StrUrl))
                {
                    #region 增加公告

                    using (SPWeb web = site.OpenWeb())
                    {
                        var dt = new DataTable();
                        dt.Columns.Add( "Title", typeof (string));
                        dt.Columns.Add( "Author", typeof (string));
                        dt.Columns.Add( "Created", typeof (DateTime));
                        dt.Columns.Add( "PostType", typeof (string));
                        dt.Columns.Add( "IsSendMail", typeof (string));
                        SPList spList = web.Lists["公告" ];
                        SPListItemCollection itemColl = spList.GetItems();
                        var objPds = new PagedDataSource();
                        objPds.DataSource = itemColl;
                        objPds.AllowPaging = true;
                        objPds.PageSize = 10;
                        int CurPage;
                        if (Request.QueryString["Page" ] != null)
                            CurPage = Convert.ToInt32(Request.QueryString["Page" ]);
                        else
                            CurPage = 1;
                        objPds.CurrentPageIndex = CurPage - 1;
                        lblCurrentPage.Text = "当前页：" + CurPage;
                        if (!objPds.IsFirstPage)
                            lnkPrev.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" +
                                                  Convert.ToString(CurPage - 1);
                        if (!objPds.IsLastPage)
                            lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" +
                                                  Convert.ToString(CurPage + 1);
                        foreach (SPListItem item in objPds)
                        {
                            string title = item.Title;
                            string tistle = item.Title;
                            //string title = "标题";
                            string author =
                                item[ "Author"].ToString().Substring(item["Author" ].ToString().LastIndexOf("#") + 1);
                            DateTime create = Convert .ToDateTime(item["PublishedDate"]);
                            string postType =
                                item[ "PostCategory"].ToString()
                                    .Substring(item[ "PostCategory"].ToString().LastIndexOf("#" ) + 1);
                            string isSendMail = Convert .ToBoolean(item["IsSendMail"]) ? "是" : "否" ;
                            dt.Rows.Add(title, author, create, postType, isSendMail);
                        }

                        #endregion

                        //绑定
                        PostRepeater.DataSource = dt;
                        PostRepeater.DataBind();
                    }
                }
                ;
            });

---

<div class="rightmid">
            <asp: Repeater ID ="PostRepeater" runat ="server">
                <HeaderTemplate>
                    <table class="gridtable" width="100%">
                        <tr <% --width="100%"--%>>
                            <th width="20%"> 标题</th >
                            <th width="20%"> 创建者</th >
                            <th width="20%"> 发布时间</th >
                            <th width="20%"> 公告类型</th >
                            <th width="20%"> 发送邮件</th >
                        </tr>
                </HeaderTemplate>

                <ItemTemplate>
                    <tr>
                        <td> <%#Eval("Title") %></ td>
                        <td> <%#Eval("Author") %></ td>
                        <td> <%#Eval("Created", "{0:yyyy-MM-dd}") %></td >
                        <td> <%#Eval("PostType") %></ td>
                        <td> <%#Eval("IsSendMail") %></ td>
                    </tr>
                </ItemTemplate>

                <FooterTemplate>
                    </table>
                </FooterTemplate>
            </asp: Repeater>
            <div style=" padding: 5px ; background-color: #dedede;text-align : center">
                <asp: Label ID ="lblCurrentPage" runat ="server"></asp: Label>
                <asp: HyperLink ID ="lnkPrev" runat ="server">上一页</ asp:HyperLink >
                <asp: HyperLink ID ="lnkNext" runat ="server">下一页</ asp:HyperLink >
            </div>
        </div>