实体框架在 ThenInclude() 之后排序答案

【问题标题】：Entity Framework order by after ThenInclude()实体框架在 ThenInclude() 之后排序
【发布时间】：2018-07-17 12:54:12
【问题描述】：

我正在返回一个实体：

var entity = _context.Note
            .Include(b => b.Flag)
            .Include(b => b.Status)
            .ThenInclude(b => b.Nav)
            .ThenInclude(bc => bc.Descr)
            .Include(b => b.File)
            .ThenInclude(b => b.TDom)
            .ThenInclude(b => b.LanguageNavigation)
            .FirstOrDefault(e => e.Id== id);

我想通过Date 订购TDom，但我不知道如何选择它？

我的 mapper.cs

CreateMap<Note, NoteViewDto>()
            .ForMember(dest => dest.EndDate, opt => opt.ResolveUsing<ViewEnddateResolver, DateTime?>(src => src.Enddate))
            .ForMember(dest => dest.Id, opt => opt.MapFrom(src => src.Pid))
            .ForMember(dest => dest.Status, opt => opt.MapFrom(src => Mapper.Map<Tpdomainvalue, IdName>(src.Status)))
            .ForMember(dest => dest.Descriptions,
                opt => opt.MapFrom(src => Mapper.Map<ICollection<TDom>, List<NoteViewDto>>(src.TDom))

                );

【问题讨论】：

请注意，您要么使用Include 或使用 AutoMapper 将项目投射到 DTO。投影忽略 Include 语句。

标签： asp.net entity-framework automapper

【解决方案1】：

将您的映射调用更新为：

CreateMap<Note, NoteViewDto>()
    .ForMember(dest => dest.EndDate, opt => opt.ResolveUsing<ViewEnddateResolver, DateTime?>(src => src.Enddate))
    .ForMember(dest => dest.Id, opt => opt.MapFrom(src => src.Pid))
    .ForMember(dest => dest.Status, opt => opt.MapFrom(src => Mapper.Map<Tpdomainvalue, IdName>(src.Status)))
    .ForMember(dest => dest.Descriptions, opt => opt.MapFrom(src => Mapper.Map<ICollection<TDom>, List<NoteViewDto>>(src.TDom.OrderBy(e => e.Date))));

【讨论】：