public SalesReceiptFacade(IServiceProvider serviceProvider, SalesDbContext dbContext)
 {
     this.DbContext         = dbContext;
     _serviceProvider       = serviceProvider;
     this.DbSet             = DbContext.Set <SalesReceiptModel>();
     this.identityService   = serviceProvider.GetService <IdentityService>();
     this.salesReceiptLogic = serviceProvider.GetService <SalesReceiptLogic>();
 }