private void btnViewDropCourse_Click(object sender, EventArgs e)
 {
     ViewCourseInterface view_course_interface = new ViewCourseInterface();
     view_course_interface.ShowDialog();
 }
        private void btnViewDropCourse_Click(object sender, EventArgs e)
        {
            ViewCourseInterface view_course_interface = new ViewCourseInterface();

            view_course_interface.ShowDialog();
        }