private void InitializeDataCount()
{
Task.Run(() =>
{
TestFacade facade = new TestFacade();
CustomersField.CurrentItemsNumber = facade.GetAllCustomers().Count;
AirlinesField.CurrentItemsNumber = facade.GetAllAirlineCompanies().Count;
FlightsField.CurrentItemsNumber = facade.GetAllFlights().Count;
TicketsField.CurrentItemsNumber = facade.GetAllTickets().Count;
});
}