Using AutoMapper Config with ValueInjecter

Aug 10, 2011 at 9:24 AM

For all who are interessted, I created a ValueInjecter extension in order to use your existing AutoMapper Mapping Configuration with ValueInjecter. I created this extension because I had to switch over to ValueInjecter, because I could not compile AutoMapper against Client Framework 4.0. And I didn't wanted rewrite my Mapping Configuration.

It looks like the AutoMapper, but internally it uses ValueInjecter ;) Hope you enjoy the extension.

public class CalendarEvent
{
    public DateTime EventDate { get; set; }
    public string Title { get; set; }
}

public class CalendarEventForm
{
    public DateTime EventDate { get; set; }
    public int EventHour { get; set; }
    public int EventMinute { get; set; }
    public string Title { get; set; }

    // Additional Members to show further mapping possibilities
    public string BarToIgnore { get; set; }
    public bool AlwaysTrue { get; set; }
}

static void Main(string[] args)
{
    // You can use the AutoMapper extension for the ValueInjecter like you would user AutoMapper

    // Model
    var calendarEvent = new CalendarEvent
    {
        EventDate = new DateTime(2008, 12, 15, 20, 30, 0),
        Title = "Company Holiday Party"
    };

    // Configure AutoMapper
    Mapper.CreateMap<CalendarEvent, CalendarEventForm>()
        .ForMember(dest => dest.EventDate, opt => opt.MapFrom(src => src.EventDate.Date))
        .ForMember(dest => dest.EventHour, opt => opt.MapFrom(src => src.EventDate.Hour))
        .ForMember(dest => dest.EventMinute, opt => opt.MapFrom(src => src.EventDate.Minute))
        .ForMember(dest => dest.Title, opt => opt.MapFrom(src => src.Title))
        .ForMember(dest => dest.BarToIgnore, opt => opt.Ignore())
        .ForMember(dest => dest.AlwaysTrue, opt => opt.UseValue(true));

    Mapper.AssertConfigurationIsValid();

    // Perform mapping
    CalendarEventForm form = Mapper.Map<CalendarEvent, CalendarEventForm>(calendarEvent);

    // Assertions
    Debug.Assert(form.EventDate == new DateTime(2008, 12, 15));
    Debug.Assert(form.EventHour == 20);
    Debug.Assert(form.EventMinute == 30);
    Debug.Assert(form.Title == "Company Holiday Party");
    Debug.Assert(form.BarToIgnore == null);
    Debug.Assert(form.AlwaysTrue == true);
}

You can download the extension from: http://wordpress.ad-factum.de/AutoMapperConfig_UsingValueInjecter.zip

And if you like it, I really would appreciate an UpVote ;) on http://stackoverflow.com/questions/7007762/using-automapper-config-with-valueinjecter