Automapper 映射自定义值 ForMember

Question

我正在使用自动映射器 8.1.1

如何为目标成员而不是源成员赋值。

我有这个代码`

    public IEnumerable<PartsTreeVM> GetMainPartsCategories(int type)
    {
        var model = _db.GetALLPartCategoriesTreeWithImages(type, 25);
        var mapper = new MapperConfiguration(cfg => cfg.CreateMap<GetALLPartCategoriesTreeWithImages_Result, PartsTreeVM>()
                .ForMember(dest => dest.VehicleType, opt => opt.MapFrom(type))
            )
            .CreateMapper();
        var result = mapper.Map<List<PartsTreeVM>>(model);

        return result;
    }

我想给所有 dest.VehicleType 成员分配 int 类型参数。

提前致谢

Answer 1

How to assign a value for destination member but not from source.

您可以使用 AfterMap 来确保目标目的地字段存在。

.ForMember(...)
.ForMember(...)
.AfterMap((source, destination) => { /*do whatever you like with destination :-) */ });

或者如果是静态数据：

.ForMember(dest => dest.VehicleType, c => c.MapFrom((s => type));

Answer 2

你可以试试这个：

var model = _db.GetALLPartCategoriesTreeWithImages(type, 25);
        var mapper = new MapperConfiguration(cfg => cfg.CreateMap<GetALLPartCategoriesTreeWithImages_Result, PartsTreeVM>()
                .ForMember(dest => dest.VehicleType, opt => opt.MapFrom(s => type))
            )
            .CreateMapper();

或者您可以使用 AfterMap 作为样本您可以试试这个：

var model = _db.GetALLPartCategoriesTreeWithImages(type, 25);
        var mapper = new MapperConfiguration(cfg => cfg.CreateMap<GetALLPartCategoriesTreeWithImages_Result, PartsTreeVM>()
                .AfterMap((s, d) => {
                    d.VehicleType = type;
                }) 
            )
            .CreateMapper();

Automapper 映射自定义值 ForMember

Automapper map custom value ForMember

c#

asp.net-mvc

automapper