Hi
I have developed a contact role functionality for custom object. I want to implement radio button functionality. I have used input type radio in my vf page and bind it with "primary___c" field which a custom checkbox field on custom contact role object.
Here




Here , I have selected Hartley Davidson as a "primary" contact in first screenshot and it should be checked as primary in the related list of contact role as highlighted in second screenshot.

Please provide assistance.

Thanks in advance.