I add radio buttons to a page with the same group name:
<asp:RadioButton GroupName="Field_MyRadioGroup" Value="Foo" runat="server" />
<asp:RadioButton GroupName="Field_MyRadioGroup" Value="Bar" runat="server" />
<asp:RadioButton GroupName="Field_MyRadioGroup" Value="Baz" runat="server" />
How do I then get the value of the radio button that was selected?