public void delete() {
boolean status = Controller.getInstance().deleteStudent(_id);
QMessageBox t = new QMessageBox();
t.setWindowIcon(new QIcon(new QPixmap("classpath:admin_resource/eot_icon.png")));
if (status) {
holder.hide();
holder.close();
t.setText("The deletion was a success");
t.setWindowTitle("Success");
t.exec();
// Controller.getInstance().work();
} else {
t.setText("The deletion failed");
t.setWindowTitle("Failed");
t.exec();
// Controller.getInstance().work();
}
}
