CODEWITHSUNDEEP
c#asp.net-mvc-3ef-code-firstautomapper
user2394196
user2394196

Reputation: 341

AutoMapper in MVC3 ViewModel to POCOs

I am using EF Code First and defined a number of POCOs. On the other hand, There are some ViewModel classes defined for each of which. Up to here, there are two projects; Model and MVC. Moreover, there is another project containing UnitOfWork and Repository Pattern(a generic repository class).

In the UnitOfWork a number of fields and properties written. Here is an example:

public GenericRepository<ActionProvider> ActionProviderRepository
    {
        get
        {
            if (this.actionProviderRepository == null)
            {
                this.actionProviderRepository = new GenericRepository<ActionProvider>(context);
            }
            return actionProviderRepository;
        }
    }

The type of this property is that of ActionProvider class defined in the Model project.

But my problem; I need to Map each of the ViewModel to the POCO classes. After surfing the web, I've come to apply AutoMapper. So the following is what I have done in the UserController class:

 public class UserController : Controller
{
    private UnitOfWork unitOfWork = new UnitOfWork();
    private User _UserModel = new User();
    private VM_User _VM_User = new VM_User();
    //
    // GET: /User/

    public ViewResult Index()
    {
        _VM_User = Mapper.Map<MAHAL_E_MA_Model.POCO.User, VM_User>(_UserModel);


        return View(unitOfWork.UserRepository.Get(orderBy: us => us.OrderByDescending(u => u.ID)).OfType<User>().ToList());
    }
}

And the error is:

Missing type map configuration or unsupported mapping.

I have tried through these links and some other ones but did't work for me! This one

And this one

Any help would be kindly appreciated..

Upvotes: 0

Views: 525

Answers (2)

user2394196
user2394196

Reputation: 341

I finally overcome the matter by the following lines of code and want to share it perhaps be useful for others:

public ViewResult Index()
    {
        var query = unitOfWork.UserRepository.Get(orderBy: us => us.OrderByDescending(u => u.ID)).OfType<User>().ToList();
        Mapper.CreateMap<User, VM_User>();
        IList<VM_User> vm_Users = Mapper.Map<IList<User>, IList<VM_User>>(query);

        return View(vm_Users);
    }

Upvotes: 1

Colm Prunty
Colm Prunty

Reputation: 1620

You need to create the map somewhere

Mapper.CreateMap<MAHAL_E_MA_Model.POCO.User, VM_User>();

I have a Mapping.Setup() method in Application_Start that creates all the maps needed.

Upvotes: 3

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