Automapper : mapping issue with inheritance and abstract base class on collections with Entity Framework 4 Proxy Pocos

Question

I am having an issue using AutoMapper (which is an excellent technology) to map a business object to a DTO where I have inheritance off of an abstract base class within a co

Answer 1

I've just faced the same problem with mapping dynamic EF proxies to ViewModels in MVC application.

I found an easy solution using Mapper.DynamicMap() for this problem. Here is my code:

Converting from Dynamic proxy to ViewModel class:

// dynamic proxy instance
WebService webService = _repWebService.GetAll().SingleOrDefault(x => x.Id == id);

//mapping
FirstStepWebServiceModel model = Mapper.DynamicMap(webService);

Converting from ViewModel class to EF Dynamic Proxy:

[HttpPost]
public ActionResult FirstStep(FirstStepWebServiceModel input)
{
    // getting the dynamic proxy from database
    WebService webService = _repWebService.GetAll().Single(x => x.Id == input.WebServiceId);

    // mapping the input ViewModel class to the Dynamic Proxy entity
    Mapper.DynamicMap(input, webService);
}

Hope this example help you