static void initializBuss(int numOfBuss = 20)
 {
     BussList = new List <DO.Bus>();
     for (int i = 0; i < numOfBuss; i++)
     {
         var dateFrom = RandomValues.randomDate();
         BussList.Add(new DO.Bus()
         {
             FromDate                 = dateFrom,
             LicenseNum               = RandomValues.randomLicenseNumber(dateFrom),
             Status                   = DO.BusStatus.READY,
             TotalTrip                = RandomValues.getKilometers(),
             LastTreatment            = RandomValues.randomDate(2018),
             KilometersAfterFueling   = RandomValues.getKilometers(0, DO.Bus.MAX_KILOMETER_AFTER_REFUELING),
             KilometersAfterTreatment = RandomValues.getKilometers(0, DO.Bus.KILOMETER_BEFORE_TREATMENT),
             FuelRemain               = RandomValues.getFuelLiters(),
             IsDeleted                = false
         });
     }
 }