RadioButtons place on a page inside a repeating control (repeater/datalist/datagrid), you set the group but they are still all individually selectable.
I have come across this problem before, which was fixed using some client side script added to the radiobuttons, but this had to be done for each radiobutton group as I added them and was a bit of a pain.
I have recently found a much better solution here -> http://www.codeproject.com/KB/webforms/How_group_RButtons.aspx
Works perfectly well. Unstructions:
1) Just download the zip file at the top of the page.
2) Unzip and place the file (GroupRadioButton.dll) into your bin folder.
3) Add a reference to the assembly into your web.config or .aspx page as below:
<%@ Register TagPrefix=”vs” Namespace=”Vladsm.Web.UI.WebControls” Assembly=”GroupRadioButton” %>
Use the control on your page as you would a RadioButton
<vs:GroupRadioButton id=”MyRbn” runat=”server” GroupName=”MyRbnGrp” />
Thats it. Brilliant
Kudos to Vladimir Smirnov.