private void courseUpdateButton_Click(object sender, EventArgs e)
        {
            addCourseObj = new AddCourseClass();

            addCourseObj.CourseNo   = courseNoTextBox.Text;
            addCourseObj.CourseName = courseNameTextBox.Text;
            addCourseObj.DeptName   = dNameComboBox.Text;
            addCourseObj.Year       = yearComboBox.Text;
            addCourseObj.Semester   = semesterComboBox.Text;

            if (courseNoTextBox.Text != "" || courseNameTextBox.Text != "" || dNameComboBox.Text != "" || yearComboBox.Text != "" || semesterComboBox.Text != "")
            {
                ob.UpdateCourseInfoTable(addCourseObj);
                MessageBox.Show("Information Updated Successfully!");
                courseResetButton_Click(sender, e);
            }
            else
            {
                MessageBox.Show("Could not Update !");
            }
        }