void DisplayStudent(Int32 StudentNo)
{
clsStudent myStudent = new clsStudent();
myStudent.Find(StudentNo);
txtStudentPNumber.Text = myStudent.StudentPNumber;
txtStudentNames.Text = myStudent.StudentFullName;
txtStudentDate.Text = myStudent.StudentAdditionDate.ToString("dd/MM/yyyy");
txtStartingYear.Text = Convert.ToString(myStudent.StudentStartingYear);
txtStudentAttendancePercentage.Text = Convert.ToString(myStudent.StudentAttendancePercentage);
chkStudentExpelled.Checked = myStudent.StudentExpelled;
ddlStudentCourse.SelectedValue = Convert.ToString(myStudent.StudentCourseNo);
ddlStudentTutor.SelectedValue = Convert.ToString(myStudent.StudentTutorNo);
}