<asp:TextBox ID="txt" runat="server" />
<asp:GridView id="GridView1" runat="server" AutoGenerateColumns="False" Width="100%" CellPadding="4" GridLines="None" ShowHeader="False" ><Columns>
<asp:BoundField DataField="UserId">
<ItemStyle Width="100px" />
</asp:BoundField>
<asp:TemplateField HeaderText="Select One">
<ItemTemplate>
<input name="MyRadioButton" type="radio"
value='<%# Eval("UserId") %>' onclick='document.getElementById("<%=txt.ClientID %>").value = this.value;' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="选择">
<ItemTemplate>
<asp:CheckBox id="CheckBox1" runat="server"></asp:CheckBox>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
<HeaderStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:BoundField DataField="UserName" HeaderText="用户帐号">
<ItemStyle HorizontalAlign="Center"></ItemStyle><HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:BoundField>
<asp:BoundField DataField="CreateDate" HeaderText="创建日期">
<ItemStyle HorizontalAlign="Center"></ItemStyle><HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:BoundField>
</Columns>
<RowStyle BackColor="#E3EAEB" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
//<asp:TextBox ID="txt" runat="server" />获取的值就是radiobutton的值.