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 !"); } }