contract/host

WCFServiceContract
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IService1 - interfejs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;

namespace WcfServiceContract
{
    [ServiceContract] public interface IKalkulator
    {
    [OperationContract]
    double Dodaj(double n1, double n2);
    [OperationContract]
    double Odejmij(double n1, double n2);
    [OperationContract]
    double Pomnoz(double n1, double n2);
    }
}

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Service1 - klasa implementująca interfejs
------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;

namespace WcfServiceContract
{
    public class mojKalkulator : IKalkulator
    { public double Dodaj(double n1, double n2)
        {
            return n1 + n2;
        }
        public double Odejmij(double n1, double n2)
        {
            return n1 - n2;
        }
        public double Pomnoz(double n1, double n2)
        {
            return n1 * n2;
        }
    }
}
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WCFServiceHost
------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;

namespace WcfServiceContract
{
    [ServiceContract] public interface IKalkulator
    {
    [OperationContract]
    double Dodaj(double n1, double n2);
    [OperationContract]
    double Odejmij(double n1, double n2);
    [OperationContract]
    double Pomnoz(double n1, double n2);
    }

}