private void FillList()
{
int previousSelected = -1;
if (listMain.SelectedIndex != -1)
{
previousSelected = SchoolCourses.List[listMain.SelectedIndex].SchoolCourseNum;
}
SchoolCourses.Refresh();
listMain.Items.Clear();
for (int i = 0; i < SchoolCourses.List.Length; i++)
{
listMain.Items.Add(SchoolCourses.List[i].CourseID + " " + SchoolCourses.List[i].Descript);
if (SchoolCourses.List[i].SchoolCourseNum == previousSelected)
{
listMain.SelectedIndex = i;
}
}
}
