MrShoes, on 11 December 2012 - 01:28 AM, said:

Even if I change it to listbox in that event, it still doesn't work.

Yes the database contains like 10 entries. It's something that my professor created for the purpose of this project. I am trying to learn the whole debugging process. I'll admit that is something I'm not the best at. I guess I should take the advice I was given and learn how that works.

By placing
loadAccountNumbers();
in public Form1(), I fixed my problem.

Right now, when I debug, my design pops up and I see the combo box, but it is empty. I put a breakpoint on line 50 like you said, and it did the same thing.

I meant to paste this.. the above code was my first shot and then I corrected it. But it still adds the exchange student each time I run the program.

            string newLastName = "'Constant";
            string newRecord = "(LIST (LIST 'Constant 'Malachi 'D ) '1234567890 'mdconstant@mail.usi.edu 4.000000 )";
            string line;
            string lastName;
            bool insertionPointFound = false;

            for (int i = 0; i < lines.Count && !insertionPointFound; i++)
            {

                line = lines[i];
                if (line.StartsWith("(LIST (LIST "))
                {
                    values = line.Split(" ".ToCharArray());
                    lastName = values[2];
                    if (newLastName.CompareTo(lastName) < 0)
                    {
                        lines.Insert(i, newRecord);
                        insertionPointFound = true;
                    }

                }


            }
            if (!insertionPointFound)
            {

                lines.Add(newRecord);                           
            }