InfoPath Dev

Thank you!  That helped with the whole xDocument error.  However, now I'm getting errors about the values not being able to convert to a string (and vice versa).

Hello! I just made my first real form with Infopath, and I want to add a field that will automatically generate a numeric code based on a name in a different text box.  I found code that does this with a case statement.  However, I am being told that "XDocument" needs to be declared.Here is the line: fieldProduct = ...