private void btnDelete_Click(object sender, RoutedEventArgs e) { //Student ID validation if (clsValidation.ValidateForEmptiness(CmbStudentId.Text) == false) { MessageBox.Show("Student id is required"); } //Class Name validation else if (clsValidation.ValidateForEmptiness(CmbClasses.Text) == false) { MessageBox.Show("Class name is required"); } //Payment validation else if (clsValidation.ValidateForEmptiness(TxtPayment.Text) == false) { MessageBox.Show("Payment is required"); } else if (clsValidation.ValidateForNumeric(TxtPayment.Text) == false) { MessageBox.Show("Payment is not a number"); } else { clsEnrollment ObjEnrollment = new clsEnrollment(int.Parse(TxtEnrollmentId.Text)); ObjEnrollment.DeleteEnrollment(); } }
private void btnAdd_Click(object sender, RoutedEventArgs e) { //Course Id validation if (clsValidation.ValidateForEmptiness(TxtEnrollmentId.Text) == false) { MessageBox.Show("Course id is required"); } else if (clsValidation.ValidateForNumeric(TxtEnrollmentId.Text) == false) { MessageBox.Show("Course id is not a number"); } else if (clsValidation.ValidateForLength(TxtEnrollmentId.Text, 5) == false) { MessageBox.Show("Course id is not 5 digits"); } //Student ID validation else if (clsValidation.ValidateForEmptiness(CmbStudentId.Text) == false) { MessageBox.Show("Student id is required"); } //Class Name validation else if (clsValidation.ValidateForEmptiness(CmbClasses.Text) == false) { MessageBox.Show("Class name is required"); } //Payment validation else if (clsValidation.ValidateForEmptiness(TxtPayment.Text) == false) { MessageBox.Show("Payment is required"); } else if (clsValidation.ValidateForNumeric(TxtPayment.Text) == false) { MessageBox.Show("Payment is not a number"); } else { clsEnrollment ObjEnrollment = new clsEnrollment(int.Parse(TxtEnrollmentId.Text), int.Parse(CmbStudentId.SelectedValue.ToString()), int.Parse(CmbClasses.SelectedValue.ToString()), double.Parse(TxtPayment.Text)); int enrollmentid = ObjEnrollment.AddEnrollment(); if (enrollmentid == -1) { MessageBox.Show("Can't pay for this course"); } else { TxtEnrollmentId.Text = enrollmentid.ToString(); MessageBox.Show("Successful pay for this course"); } } }
private void CmbClasses_SelectionChanged(object sender, SelectionChangedEventArgs e) { clsEnrollment ObjEnrollment = new clsEnrollment(); MessageBox.Show(CmbClasses.SelectedValue.ToString()); ObjEnrollment.ClassId = int.Parse(CmbClasses.SelectedValue.ToString()); Double Fee = ObjEnrollment.SearchFee(); if (Fee != 0.0 & Fee != 0) { MessageBox.Show("Success to search fee for this class"); LabFee.Content = Fee.ToString(); } else { MessageBox.Show("Problem to find fee for this class"); LabFee.Content = "Problem to find fee for this class"; } }