InfoPath Dev

Not sure if this can be done but after you complete a form. Lets say you have a drop down list, and it has some values. Can we, overtime, have the data that users input be integrated in to that form so that lets say we are choosing from a field called Vendors which I currently placed only 2 options,...

I have an InfoPath form with custom C# code, and a Sharepoint list. I have a dropdownlist in the InfoPath form that I want to populate with a certain field from the Sharepoint list (I want the InfoPath dropdownlist to contain this field's value from every item in the Sharepoint list. I can successfully...