InfoPath Dev

I have tried binding it to just about anything, an element, a group, anything, whatever I click on in the box to bind it produces the same error message. I think I am missing something very basic about how to use this control I have a one to many relationship in an exceptionally basic database design and cannot get it to play ball. Should I be ...

I am having no success in working out how to use the multi selection list box in a database form. I keep getting the error  "A multiple-selection list box control must be bound to a repeating field with a text data type" In the form the user is entering details of a new book and can select many categories to which the book might ...