I am learning design patterns and this is my sample code where I have implemented Factory pattern and instance creation I have delegated to Unity container Framework(DI) to build the loosely coupled system.

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Unity;  namespace DesignPatternsDemo {     class Program     {         static void Main(string[] args)         {              iPaymentGateway gateway = PaymentGatwayFactory.NewPaymentGatway(GateWay.SHIFT4);             gateway.CreatePaymentGateway();             gateway = PaymentGatwayFactory.NewPaymentGatway(GateWay.WELLSFARGO);             gateway.CreatePaymentGateway();             gateway = PaymentGatwayFactory.NewPaymentGatway(GateWay.PROTOBASE);             gateway.CreatePaymentGateway();             Console.ReadLine();         }          enum GateWay         {             PROTOBASE = 1,             SHIFT4 = 2,             WELLSFARGO = 3         }           //Factory class         class PaymentGatwayFactory         {             public static iPaymentGateway NewPaymentGatway(GateWay GateWayType)             {                  //Dependency injection using unity container                 var container = new UnityContainer();                 iPaymentGateway result = null;                 switch (GateWayType)                 {                     case GateWay.SHIFT4:                         container.RegisterType<iPaymentGateway, SHIFT4Gateway>();                         result = container.Resolve<SHIFT4Gateway>();                         break;                     case GateWay.WELLSFARGO:                         container.RegisterType<iPaymentGateway, WellsFargoGateway>();                         result = container.Resolve<WellsFargoGateway>();                         break;                     default:                         container.RegisterType<iPaymentGateway, ProtobaseGateway>();                         result = container.Resolve<ProtobaseGateway>();                         break;                 }                  return result;             }         }          class WellsFargoGateway : iPaymentGateway         {             public void CreatePaymentGateway()             {                 Console.WriteLine("Implement Wells Fargo logic");             }         }          class SHIFT4Gateway : iPaymentGateway         {             public void CreatePaymentGateway()             {                 Console.WriteLine("Implement SHIFT4 logic");             }         }          class ProtobaseGateway : iPaymentGateway         {             public void CreatePaymentGateway()             {                 Console.WriteLine("Implement Protobase logic");             }         }          interface iPaymentGateway         {             void CreatePaymentGateway();         }     } } 

Is this is the right way of implementing Factory pattern and using the Unity framework?