private void FillCourseDropDown()
{
CourseDD.Items.Clear();
ClubBAIST cb = new ClubBAIST();
List <Course> cs = cb.ReadAllCourses();
foreach (Course c in cs)
{
ListItem li = new ListItem();
li.Text = c.CourseName;
li.Value = c.CourseID.ToString();
CourseDD.Items.Add(li);
}
}