Radio button sets are bound to a single field in your DOM. If you want to know which radio button is selected (if any), just get the value of the field to which the controls are bound.

Example. If you have 3 radio buttons bound to my:field1 as such

O Radio 1
O Radio 2
O Radio 3

And their values are A, B, and C respectively... then if you get the value of my:field1 and it is blank, no radio button is selected. If you get the value of my:field1 and it is "B" then Radio 2 is selected.

Make sense?

Can you suggest me how to Get the value of radio button.that means through
code i want to know wheher the radio button is selected ot not ???
How To know??