public static DataManagement GetInstance()
        {
            if (instance == null)
            {
                instance = new DataManagement();
                instance.applicationRawData     = instance.DataApplication();
                instance.applicationRawMenu     = instance.DataMenu();
                instance.applicationRawCustomer = instance.DataCustomer();
            }

            return(instance);
        }
 public ApplicationRepository()
 {
     _dataManagement = DataManagement.GetInstance();
 }
 public CustomerRepository()
 {
     _dataManagement = DataManagement.GetInstance();
 }