类型“System.Web.UI.WebControls.Repeater”不具有名为“tr”的属性

在页面中这样应用Repeater控件

        <form id="Form1" method="post" runat="server">
            <FONT face="宋体">
                <table>
                    <tr>
                        <td width="60%"></td>
                        <td width="10%">日期</td>
                        <td width="10%">人气</td>
                        <td width="10%">文件大小</td>
                    </tr>
                    <asp:Repeater id="Repeater1" runat="server">
                        <tr>
                            <td><%# ((DataRowView)Container.DataItem)["Name"] %></td>
                            <td></td>
                            <td></td>
                            <td></td>
                        </tr>
                        <tr>
                            <td><%# ((DataRowView)Container.DataItem)["Abstract"] %></td>
                            <td><%# ((DataRowView)Container.DataItem)["PublicDate"] %></td>
                            <td><%# ((DataRowView)Container.DataItem)["HotCount"] %></td>
                            <td><%# ((DataRowView)Container.DataItem)["FirstName"] %></td>
                        </tr>
                        <tr>
                            <td>操作系统：<%# ((DataRowView)Container.DataItem)["OS"] %>&nbsp;&nbsp;&nbsp;授权方式：<%# ((DataRowView)Container.DataItem)["OfferStyle"] %></td>
                            <td></td>
                            <td></td>
                            <td></td>
                        </tr>

                    </asp:Repeater>
                </table>
            </FONT>
        </form>

在执行的时候出现如下的错误：



怎么回事？