private void Button_Click(object sender, RoutedEventArgs e)
{
if (SubjectField.Text.Length > 20 || TeacherField.Text.Length > 20)
{
MessageBox.Show("Subject name and Teacher's name must not contain more than 20 letters ", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (String.IsNullOrWhiteSpace(TeacherField.Text) || String.IsNullOrWhiteSpace(SubjectField.Text))
{
MessageBox.Show("Please, fill all fields", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
TeacherField.Clear();
SubjectField.Clear();
return;
}
Group.struct_teachers res = new Group.struct_teachers
{
Name = TeacherField.Text,
Subject = SubjectField.Text
};
subject.teachers.Add(res);
prevWindow.SubjectGrid.Items.Refresh();
Close();
}
public void Delete(TeacherField entity)
{
_teacherFieldDal.Delete(entity);
}
public TeacherField Add(TeacherField entity)
{
return(_teacherFieldDal.Add(entity));
}
