public IEnumerable<Supplier> getSupplier(IEnumerable<SupplierModel> data)
        {
            var list = new List<Supplier>();
            if (data.Count() > 0)
            {
                foreach (var model in data)
                {
                    var supplier = new Supplier();

                    if (model != null)
                    {
                        supplier.Address = model.Address;
                        supplier.City = model.City;
                        supplier.Country = model.Country;
                        supplier.Phone = model.Phone;
                        supplier.PostalCode = model.PostalCode;
                        supplier.Products = getProduct(model.Products);
                        supplier.Region = model.Region;
                        supplier.SupplierId = model.SupplierId;
                        supplier.SupplierName = model.SupplierName;
                        supplier.SupplierTitle = model.SupplierTitle;
                    }
                    list.Add(supplier);
                }
            }
            return list.AsEnumerable();
        }
        public Supplier getSupplier(SupplierModel model)
        {
            var supplier = new Supplier();

            if (model != null)
            {
                supplier.Address = model.Address;
                supplier.City = model.City;
                supplier.Country = model.Country;
                supplier.Phone = model.Phone;
                supplier.PostalCode = model.PostalCode;
                supplier.Products = getProduct(model.Products);
                supplier.Region = model.Region;
                supplier.SupplierId = model.SupplierId;
                supplier.SupplierName = model.SupplierName;
                supplier.SupplierTitle = model.SupplierTitle;
            }

            return supplier;
        }