wcf client local function

Question

I have the following class

[DataContract]
public class A
{
    private List<B> b= new List<B>();

    public float getSum()
    {
        float sum= 0;

        foreach (B b1 in b)
        {
            sum+= b1.sum;
        }

        return sum;
    }

    [DataMember]
    public int B
    {
        get { return b; }
        set { b = value; }
    }

The function getSum() is domain specific function.
I have wcf service hosted in IIS and wcf client.

In the client I like to use the class A and to call the function getSum().
The function needs to be local call, not remote.

I like to use it this way:

A a = proxy.getA(101);

var1 = a.getSum();

A a1 = new A();
a1.setSomething
proxy.Insert(a1);

How can I do this with wcf ?

Answer 1

The only way to achieve this is to use the same assembly containing this class on the client instead of generating a proxy. So put this class into a separate assembly that you will share between the client and the server. Obviously if your client is not .NET this won't be possible.

---

To reuse types from a given assembly you could use the /reference:<file path> switch when generating your proxy class instead of importing them from the WSDL of the web service and thus losing the getSum() (which by the way should start with a capital letter in order to follow good coding practices):

svcutil.exe /reference:AssemblyThatContainsTheClassA.dll http://example.com/test.svc?wsdl

or if you are using the Add Service Reference... dialog in Visual Studio: