private void delLec_Click(object sender, EventArgs e)
{
Lecturer lecturer = new Lecturer();
lecturer.eid = eidtxt.Text;
LectureController lectureController = new LectureController();
lectureController.DeleteLecturer(lecturer);
nametxt.Text = "";
eidtxt.Text = "";
factxt.Text = "";
depttxt.Text = "";
centertxt.Text = "";
buildingtxt.Text = "";
leveltxt.Text = "";
ranktxt.Text = "";
eidtxt.ReadOnly = false;
lecturerTble.DataSource = lectureController.getdatatoTable();
}
