private void AddNewSubsectionButton_Click(object sender, RoutedEventArgs e)
{
if (NewSubsectionNameTextBox.Text.Trim() == string.Empty)
{
return;
}
_cc.AddWorkSubsection(Convert.ToInt32(WorkSectionsListBox.SelectedValue), NewSubsectionNameTextBox.Text);
NewSubsectionNameTextBox.Text = string.Empty;
AddNewSubsectionGrid.Visibility = Visibility.Hidden;
AdministrationClass.AddNewAction(26);
}