AutoMapper.Mapper does not contain definition for CreateMap

Question

This might be a basic question but wondering I am not getting AutoMapper.Mapper.CreateMap method.

Am I using wrong AutoMapper reference/package? Thanks

Answer 1

Here is how I used AutoMapper in my code.

Step 1 : Downloaded AutoMapper through nuget-packages.

Version is

Step 1 : Created DTO class

public class NotificationDTO
{

    public DateTime DateTime { get; private set; }
    public NotificationType Type { get; private set; }
    public DateTime? OriginalDateTime { get; private set; }
    public string OriginalVenue { get; private set; }
    public ConcertDTO Concert { get; set; }
}

public class ConcertDTO
{
    public int Id { get; set; }
    public bool IsCancelled { get; private set; }
    public DateTime DateTime { get; set; }
    public string Venue { get; set; }

}

Step 2 : Created an AutoMapperProfile class which inherits from Profile

using AutoMapper;
using ConcertHub.DTOs;

namespace ConcertHub.Models
{
  public class AutoMapperProfile : Profile
  {
    public AutoMapperProfile()
    {
        CreateMap();
        CreateMap();
    }
  }
}

Step 3 : Registered AutoMapperProfile in the Application Start method of Global.asax file

protected void Application_Start()
    {
        AutoMapper.Mapper.Initialize(cfg => cfg.AddProfile());

    }

Finally the magic piece of code in the Api Controller

public IEnumerable GetNewNotification()
    {
        var userId = User.Identity.GetUserId();
        var notifications = _dbContext.UserNotifications
                .Where(un => un.UserId == userId && !un.IsRead)
                .Select(un => un.Notification)
                .Include(n => n.Concert)
                .ProjectTo()//use Automapper.QueryableExtension namespace
                .ToList();

        return notifications;
    }

Hope it helps .