WCF客户端采用DLL方式

----------clientProxy------------------

 class CarRentalPrxoxy:ClientBase<IRental>,IRental
    {
        public CarRentalPrxoxy()
            :base("RentalServiceEndPoint")
        {
           
        }

        #region IRental 成员

        public string RegisterCarRental(RentalRegistraction rentalRegistraction)
        {
            return Channel.RegisterCarRental(rentalRegistraction);
        }

        public void RegisterCarRentalAsPaid(string rentalID)
        {
            Channel.RegisterCarRentalAsPaid(rentalID);
        }

        public void StartCarRental(string rentalID)
        {
            Channel.StartCarRental(rentalID);
        }

        public void StopCarRental(string rentalID)
        {
            Channel.StopCarRental(rentalID);
        }

        public RentalRegistraction GetRentalRegsitration(string rentalID)
        {
            return Channel.GetRentalRegsitration(rentalID);
        }

        #endregion
    }

-------------Client.Config-----------------------

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.serviceModel>
    <client>
      <endpoint name="RentalServiceEndPoint" address="http://localhost:9876/RentalService" binding="wsHttpBinding" contract="RentalInterface.IRental" >
      </endpoint>
    </client>
  </system.serviceModel>
</configuration>

--------------client.cs------------------------------------

 CarRentalPrxoxy proxy = new CarRentalPrxoxy();

            RentalRegistraction registraction = new RentalRegistraction();
            registraction.CarID = "JF00000";
            registraction.Comments = "备注";
            registraction.CustomerID = 1;
            registraction.DropOffDateTime = DateTime.Now;
            registraction.DropOffLocation = -1;

            string result = proxy.RegisterCarRental(registraction);
            MessageBox.Show(result);