I have a pair of Option Buttons bound to a data source field called discussedOutside. The form is to be loaded from a Web Service, and that service correctly loads all of the text boxes on the form. But it doesn't set the correct option button. The associated database field is of type varchar(2) and the record I am retrieving has a Y. The C# class in the web service declares that field as a String. On InfoPath one of the buttons has Y set as the value to save, and the other has N. I expected that passing in a Y would cause one of the buttons to be selected and passing in an N would cause the other one to be selected, but neither is selected.

Any ideas on where I'm going wrong? Many thanks.