Automapper map recursive menu tree

Question

I followed the instructions on https://www.mikesdotnetting.com/article/255/entity-framework-recipe-hierarchical-data-management

Now I'm trying to map my entities to my dtos which is constantly failing.

I saw many issues releated to this but none of them has a "clean" way of mapping. I started like this...

CreateMap<MenuItem, DTO.MenuItem>()
    .ForMember(d => d.Children, opt => opt.MapFrom(src => src))
    .ForMember(d => d.Parent, opt => opt.MapFrom(src => src.Parent))
    .ForMember(d => d.MenuText, opt => opt.MapFrom(src => src.MenuText))
    .ForMember(d => d.LinkUrl, opt => opt.MapFrom(src => src.LinkUrl))
    .ForMember(d => d.MenuOrder, opt => opt.MapFrom(src => src.MenuOrder))
    .ForMember(d => d.ParentMenuItemId, opt => opt.MapFrom(src => src.ParentMenuItemId))
    .ForMember(d => d.MenuId, opt => opt.MapFrom(src => src.MenuId))
    .ForMember(d => d.MenuItemId, opt => opt.MapFrom(src => src.MenuItemId))
    .ForMember(d => d.Menu, opt => opt.MapFrom(src => src.Menu));

How should the mapper know which parent element to map to?

Any help would be appreciated.

IF property names are the same you don't need to specify it, it will get mapped by convention... — kayess, Jul 25 '17 at 10:42
Please provide your classes to give a better explanation of your question — Hannan Ayub, Jul 25 '17 at 10:45
my classes just look like those in the code-first example from mikedot... If I map them just as they are I do get a stackoverflow. — jonny, Jul 25 '17 at 11:08

score 1 · Answer 1 · answered Jul 25 '17 at 12:10

1

This should just work (no stack overflow). See https://github.com/AutoMapper/AutoMapper/wiki/5.0-Upgrade-Guide#circular-references. There is also a PR pending https://github.com/AutoMapper/AutoMapper/pull/2233.

answered Jul 25 '17 at 12:10

Lucian Bargaoanu

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Automapper map recursive menu tree

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