private void AddNewSectionButton_Click(object sender, RoutedEventArgs e) { if (NewSectionNameTextBox.Text.Trim() == string.Empty) { return; } _cc.AddWorkSection(Convert.ToInt32(WorkUnitsListBox.SelectedValue), NewSectionNameTextBox.Text); NewSectionNameTextBox.Text = string.Empty; AddNewSectionGrid.Visibility = Visibility.Hidden; AdministrationClass.AddNewAction(25); }