private void btn_Done_AddGrade_Click(object sender, RoutedEventArgs e)
{
if (cmb_Subject_AddGrade.SelectedIndex != -1 && grade != 0)
{
if (edit)
{
GradeManager.DeleteGrade(edit_id);
}
Subject selected_subject = (Subject)cmb_Subject_AddGrade.SelectedItem;
GradeType selected_gradetype = (GradeType)cmb_GradeType_AddGrade.SelectedItem;
Grade new_grade = new Grade(selected_subject.id, grade, dtp_Date_AddGrade.Date, selected_gradetype);
new_grade.AddGrade();
Frame.GoBack();
}
else
{
GradeManager.not_completed_dialog();
}
}
