private void SemesterComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
CourseComboBox.Items.Clear();
CourseComboBox.Text = "";
semester = this.SemesterComboBox.Text;
SemesterRepository smr = new SemesterRepository();
if (smr.CheckIsRegistrationOpen(semester))
{
this.CourseComboBox.Visible = true;
this.SelectCourseLabel.Visible = true;
this.DoneRegistrationBtn.Visible = true;
CourseRepository cr = new CourseRepository();
List <Course> cList = cr.GetAllCourses(semester, ID);
for (int i = 0; i < cList.Count; i++)
{
this.CourseComboBox.Items.Add(cList[i].Name + " " + cList[i].Section);
}
}
else
{
this.CourseComboBox.Visible = false;
this.SelectCourseLabel.Visible = false;
this.DoneRegistrationBtn.Visible = false;
MessageBox.Show("Registration for this semester is Closed", "Error");
}
}