Can WCF Service have constructors?

Question

When I new a WCF service in my solution, can I do the following, have a constructor with parameter to pass in? If yes, how, when and where does the runtime fill in my required IBusinessLogic object?

[ServiceContract]
public interface IServiceContract
{
    [OperationContract]
    ...
}

public class MyService : IServiceContract
{
    IBusinessLogic _businessLogic;
    public ServiceLayer(IBusinessLogic businessLogic)
    {
        _businessLogic = businessLogic;
    }
    ...
}

Answer 1

Out of the box WCF will only use the default constructor, you can't use parameterised constructors. You have to do a bit of extra work to make WCF call parameterised constructors.

You could try this:

How do I pass values to the constructor on my wcf service?

Answer 2

Look at ServiceHostFactory.