<asp:Repeater ID="rpt_ente" runat="server" OnItemDataBound="rpt_ente_DataBound"  >
            <ItemTemplate>
                <table >
                    <tr>
                        <td 
                            选择<asp:RadioButton ID="rdb_enteid" runat="server" Text='<%#Eval("id") %>' 
                            GroupName="radio_ente"  OnCheckedChanged="rdb_enteid_Checked" AutoPostBack="true" />
                            
                        </td>
                        <td >
                            <asp:Label ID="lbl_entename" runat="server" Text='<%#Eval("name") %>'></asp:Label>
                        </td>
                        <td>
                            <asp:Label ID="lbl_areaname" runat="server" Text='<%#Eval("areaname") %>'></asp:Label>
                        </td>
                        <td >
                            <asp:Label ID="lbl_phone" runat="server" Text='<%#Eval("phone") %>'></asp:Label>
                        </td>
                        <td >
                            <asp:Label ID="lbl_ENTEADDRESS" runat="server" Text='<%#Eval("sex") %>'></asp:Label>
                        </td>
                        <td>
                            <asp:Label ID="lbl_remark" runat="server" Text='<%#Eval("remark") %>'></asp:Label>
                        </td>
                        
                     </tr>
                </table>
            </ItemTemplate>
        </asp:Repeater>

  protected void Page_Load(object sender, EventArgs e)
        {

            if (!IsPostBack)
            {
                int enteid = Convert.ToInt32(Request.QueryString["id"]);
                Bind_rptente();
            }
            else 
            {
                Bind_rptente();
            }

        }

protected void Bind_rptente()
        {
//省略绑定代码

｝
//当被选中时，循环Repeater中的单选把选择项唯一标识记录下来
 protected void rdb_enteid_Checked(object sender, EventArgs e)
        {
            foreach (RepeaterItem i in this.rpt_ente.Items)
            {
                RadioButton radiocheck = (RadioButton)i.FindControl("rdb_enteid");
                if (radiocheck.Checked == true)
                {
                    string checkvalue = radiocheck.Text;

                    Session["checkvalue"] = checkvalue;
                   
                }
            }
        }
//在REPEAATER绑定行时，如果有单选按钮值与前面保存的值相同就让他选择，否则不选择
        protected void rpt_ente_DataBound(object sender, RepeaterItemEventArgs e)
        {
            
            RadioButton radiocheck = (RadioButton)e.Item.FindControl("rdb_enteid");
            if (Session["checkvalue"] != null)
            {
                string id = Session["checkvalue"].ToString();
                if (radiocheck.Text == Session["checkvalue"].ToString())
                {
                    radiocheck.Checked = true;
                }
                else
                {
                    radiocheck.Checked = false;
                }

            }
        }