c# automapper - Latitude, Longitude to Point converter

Question

I am trying to map a ViewModel to a model. I am new to Automapper and I find the documentation incomplete. After hours of search, stackoverflow seems to be the last stop.

This is what I am trying to map:
ViewModel

public class UpdatedCompleteLocation
    {
        public double? Longitude { get; set; }
        public double? Latitude { get; set; }
        public string? Address { get; set; }
        public string? City { get; set; }
        public string? CountryCode { get; set; }
        public string? Region { get; set; }
        public string? Country { get; set; }
    }

To:

Model

public class EventLocation
    {        
        public int Id { get; set; }

        public string? EntityName { get; set; }

        public string? City { get; set; }

        public string? Region { get; set; }

        public string? Address { get; set; }

        public string? Country { get; set; }

        public string? CountryCode { get; set; }

        [Column(TypeName = "geometry (point)")]
        public Point Location { get; set; }
    }

The trick comes when I try to map Longitude, Latitude to X, Y in the Location of type Point which is part of NetTopologySuite.Geometries . Also as a precondition, the lat/long has to be not null.

This is what I came up with so far:

 CreateMap<UpdatedCompleteLocation, EventLocation>()
             .ForAllMembers(opt => opt.Condition((src, dest, srcMember) => srcMember != null));

Answer 1

If you want to stick with Automapper, you must add a custom conversion for the Location property. Using your existing CreateMap, you can extend it like:

CreateMap<UpdatedCompleteLocation, EventLocation>()
   .ForAllMembers(opt => opt.Condition((src, dest, srcMember) => srcMember != null))
   .ForMember(dest => dest.Location, opt => opt.MapFrom(src => new Point(src.Longitude, src.Latitude));