Radiobutton loses values every postback

1. There are Radio buttons 'Enable' and 'disable' inside an Update panel (say x)

2. below that, I have 3 radio buttons 'Default' 'Upload Image' and 'Text' (say y)

3. when I choose 'Disable' then 'y' will be hidden. else visible. This much works, no problem he开发者_运维问答re

4. when I choose 'Enable' it shows radio buttons in 'y'

5. from that I choose any of those 3 buttons radio buttons in 'x' looses checked value

You have to assign a different value for the RadioButton.GroupName for each RadioButton controls group.