From the reseach that I have been doing, I believe I need to enter some code into the AfterUpdate property. Any suggestions?

Hi, I'm having a major dilemma here. I know it's not very difficult in a sense, but any help will be greatful. So, with no more delay, here is my problem:

I created a form called ImportFiles_Add itionForm. I have a combo box linking to another value in a table. Here is my SQL view:

SELECT dbo_FileTypes.F ileTypeID, dbo_FileTypes.T ypeDescription
FROM dbo_FileTypes
ORDER BY dbo_FileTypes.T ypeDescription;...