Userform Listbox For User Entry?

[DCSwearingen]

I have an application I am trying to help a coworker complete. We use 150 to 200 "bulk item codes" for process paramater specifications.

What she would like to do is to create a userform to pick the 10 to 20 bulk item codes produced for the day and enter the production units.

Say the spreadsheet looks like:

        A                B
        Bulk            Prdtcn
 1      Item             Units

 2     1400051          15,243
 3     1400118
 4     1400139           9,386
 5     1400228
 6     1400230
 7     1400231          11,236
 8     1400232
 9     1400236
10     1400290      
11     1400401
12     1400404           7,235
13     1400406
14     1400411

she would like to be able to enter the bulk item code (not let her enter an item that is not in the above list) and the corresponding production units into a userform that would look like:

      Bulk             Prdtcn
      Item             Units

     1400051          15,243
     1400139           9,386
     1400231          11,236
     1400404           7,235

I have been trying to read the VBA Help file on using the ListBox without much success.

Is the ListBox the correct tool, and if so, how do I use it in this application?