private void addButton_Click(object sender, RoutedEventArgs e) { try { bl.AddPrayer(prayer); prayer = new BE.Prayer(); Grid1.DataContext = prayer; prayersWindow.PrayerDataGrid.ItemsSource = null; prayersWindow.PrayerDataGrid.ItemsSource = bl.GetAllPrayers(); prayersWindow.ChoosePrayerComboBox.ItemsSource = null; prayersWindow.ChoosePrayerComboBox.ItemsSource = bl.GetAllPrayers(); string message = prayer.FirstName + " " + prayer.LastName + "נוסף לרשימת המתפללים"; MessageBox.Show(message, "המתפלל נוסף לקהילה", MessageBoxButton.OK, MessageBoxImage.Information, MessageBoxResult.OK, MessageBoxOptions.RightAlign); prayer = new BE.Prayer(); Grid1.DataContext = prayer; BMparashaComboBox.SelectedIndex = -1; LastAliyaParashaComboBox.SelectedIndex = -1; TribeComboBox.SelectedIndex = 2; FirstNameTextBox.Focus(); } catch (Exception ex) { MessageBox.Show(ex.Message, "אזהרה!", MessageBoxButton.OK, MessageBoxImage.Error); } }