C#绑定gridview

 <asp:RadioButtonList ID="RdButFreightMode" runat="server" DataSourceID="SqlFreightMode"
            DataTextField="mode_name" DataValueField="mode_id"
            RepeatDirection="Horizontal" Width="280px">
        </asp:RadioButtonList><asp:SqlDataSource ID="SqlFreightMode" runat="server"  ConnectionString="<%$ ConnectionStrings:chargeConnectionString %>"
            SelectCommand="SELECT [mode_name], [mode_id] FROM [freightmode]"></asp:SqlDataSource>