在WCF datacontract中公开扩展方法

Question

Is it possible to expose extension methods on objects which are data contracts in WCF?

Here is an example:

[DataContract]
public class Customer
{
    [DataMember]
    public int ID { get; set; }

    [DataMember]
    public string FirstName { get; set; }

    [DataMember]
    public Product CurrentProduct { get; set; }

    public Customer DeepCopy()
    {
        //Do Something else. For example just return a new instance
        return new Customer();
    }      
}

[DataContract]
public class Product
{
    [DataMember]
    public int ID;

    [DataMember]
    public int Name;
}

In the customer class there is a deep copy method. How do I expose this to the client?

Answer 1

不可以，您只能在WCF DataContract中公开属性，而不能在方法中公开。

Answer 2

You can almost do this using the "Reuse types" feature. Unfortunately for your case, it only allows the reuse of types which are actually used by the service as input or output parameters. Your class holding the extension methods will be a static class and will therefore not appear as an input parameter nor as a return type.