private void BtnDelete_Click(object sender, RoutedEventArgs e)
{
COURSEREGISTRATION deleteCoruseregistration = (COURSEREGISTRATION)dbView.SelectedItem;
dbContext.db.COURSEREGISTRATION.Remove(deleteCoruseregistration);
dbContext.db.SaveChanges();
Page_Loaded(null, null);
}
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
COURSEREGISTRATION newCourseregistration = new COURSEREGISTRATION();
var a = dbContext.db.TRAINER.FirstOrDefault(item => item.Name == cmbTrainer.Text);
var b = dbContext.db.COURSE.FirstOrDefault(item => item.Title == cmbCourse.Text);
newCourseregistration.CreatedDate = Convert.ToDateTime(dpCreatedDate.SelectedDate);
newCourseregistration.IsDone = txbIsDone.Text;
newCourseregistration.TotalPoint = Convert.ToInt32(txbTotalPoint.Text);
newCourseregistration.Comment = txbComment.Text;
newCourseregistration.Trainerid = a.Id;
newCourseregistration.Courseid = b.Id;
MessageBox.Show("Данные добавлены", "Уведомление", MessageBoxButton.OK, MessageBoxImage.Information);
dbContext.db.COURSEREGISTRATION.Add(newCourseregistration);
dbContext.db.SaveChanges();
}