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Radio Buttons

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Hi all,

I have a data table with radio buttons in the last column.

The value it's bound to is an Integer.
The selectItems list is Integer, String.

I sometimes get a conversion error. So I wrote a custom converter.

Got the program to fail again, but this time I'm getting Validation Error: Value is not valid

The value the radio buttons gets bound to is set before the radio buttons themselves, so there's really no reason for the validation error. And yet, here's the error, and nothing is selected as a default.

Consider Paul's rocket mass heater.
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