Pass class as a function parameter in client program WCF C# - wcf

Question

I have written a wcf program where I have an class library where I declared the function which contains a class as a parameter.
I accessed that function in a client program but I don't know how to pass the class to that function. I will write the code below.
I have an interface which contains basic function declaration
In the class library there is another class it is implementing the interface. That interface contains a method which takes a class as parameter.
That class which is parameter contains properties.
[ServiceContract]
public interface ICarDetails
{
[OperationContract]
string updateCarDetails(Car c);
}
public class CarDetails : ICarDetails
{
public string updateCarDetails(Car c)
{
//some operations and initilizations
string example = Car.carno = "1234";
return "success";
}
}
Public class Car
{
private string carno;
private string carModel;
public string CARNO
{
get{ return carno; }
set{ carno = value; }
}
public string CARMODEL
{
get{ return carModel; }
set{ carModel = value; }
}
}
3) I will get access this function in myclient program where I consume. While consuming I need to send a class right? If so how can I send a class.
class Program
{
static void Main(string[] args)
{
CarDetailsserviceClient client = new CarDetailsserviceClient();
string abc = client.updateCarDetails(); // This shows error
}
}
public class carclient
{
public string carno = "6789";
}
I want to send this client class carclient to wcf service function updatecardetails.

Answer 1

You need to mark your Car type with the DataContract and DataMember attributes before you can pass it across the service boundary:
[DataContract]
public class Car
{
private string carno;
private string carModel;
[DataMember]
public string CARNO
{
get{ return carno; }
set{ carno = value; }
}
[DataMember]
public string CARMODEL
{
get{ return carModel; }
set{ carModel = value; }
}
}
If you do this then regenerate your service client, you will find you have access to the Car type from you calling code and you won't need to define your own type on the client side.

Answer 2

You can't pass a class, you must pass an object of that class. Create new object :
Car carclient = new Car() { CARNO = "6789" };
Then, pass it in argument :
string abc = client.updateCarDetails(carclient);
Car must be include in the DataContract like this :
[DataContract]
public class Car
{
private String carno;
private String carModel;
[DataMember]
public String CARNO
{
get { return this.carno; }
set { this.carno = value; }
}
[DataMember]
public String CARMODEL
{
get { return this.carModel; }
set { this.carModel = value; }
}
}