Must select one item in the repeating group list

Hi team,
Can someone let me know how to make sure that customer select at least one item in the repeating group list item before submitting.


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also would like to know how to Unselect if user clicks on the same item.

Please let me know if you need any other details.
Thank you

It depends om how that rg row is built. The pic does not provide enough info.

Hi thanks for the reply. i figured it out actually. forgot to let you know. Used the repeating group and conditions to work around.

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