Hi Julie,
Thank you for your interest in Syncfusion products.
Please refer the following forum thread that discusses about "How to set a column with each row containing one Radiobutton which behave as a grouping or a single selection column"
http://www.syncfusion.com/Support/Forums/message.aspx?&MessageID=49743Please have a look the above forum thread and let me know if this helps.
Regards,
Jisha