public static AddWorker GetAddWorker()
{
if (add_worker == null)
{
add_worker = new AddWorker();
}
add_worker.Activate();
return(add_worker);
}
//Працівники
private void AddWorker_Click(object sender, RoutedEventArgs e)
{
add_worker = AddWorker.GetAddWorker();
add_worker.Show();
}
private void Window_Closed(object sender, EventArgs e)
{
add_worker = null;
}