AutoMapper映射INT []或者List＆LT; INT＆GT;从视图模型到List＆LT;类型＆GT;在域模型 [英] AutoMapper mapping int[] or List<int> from ViewModel to a List<Type> in Domain Model

问题描述

我是新来AutoMapper，我一直在读，在这里读书的问题，但我不太能够弄清楚什么看起来像一个很琐碎的问题。

I'm new to AutoMapper and I've been reading and reading questions around here but I'm not quite able to figure out what looks like a very trivial question.

首先我的班，那么问题（S）：

First my classes, then the question(s):

GatewayModel.cs

GatewayModel.cs

public class Gateway
{
    public int GatewayID { get; set; }
    public List<Category> Categories { get; set; }
    public ContentType ContentType { get; set; }

    // ...
}

public class Category
{
    public int ID { get; set; }
    public int Name { get; set; }

    public Category() { }
    public Category( int id ) { ID = id; }
    public Category( int id, string name ) { ID = id; Name = name; } 
}

public class ContentType
{
    public int ID { get; set; }
    public int Name { get; set; }

    public ContentType() { }
    public ContentType( int id ) { ID = id; }
    public ContentType( int id, string name ) { ID = id; Name = name; } 
}

GatewayViewModel.cs

GatewayViewModel.cs

public class GatewayViewModel
{
    public int GatewayID { get; set; }
    public int ContentTypeID { get; set; }
    public int[] CategoryID { get; set; }
    // or public List<int> CategoryID { get; set; }
    // ...
}

这是我一直在阅读了一整天，这是我迄今想通了。我不知道如何从视图模型中的int []（或者如果它需要是列表）映射到模型的列表。

From what I've been reading all day this is what I have figured out so far. I don't know how to map the int[] (or List if it needs be) from the ViewModel to the List in the Model.

的Global.asax.cs

Global.asax.cs

Mapper.CreateMap<Gateway, GatewayViewModel>();
Mapper.CreateMap<GatewayViewModel, Gateway>()
    .ForMember( dest => dest.ContentType, opt => opt.MapFrom( src => new ContentType( src.ContentTypeID ) ) )
    .ForMember( /* NO IDEA ;) */ );

基本上，我需要从视图模型的所有INT []类别ID项目映射到列表关键词模型类型的ID属性格式。对于反向映射我需要从类别类型的所有的ID映射到我的INT []（或列表）类别ID，但我认为我有想通了（还没有得到有没有）。如果我需要做的反向映射类似的东西，请让我知道。

Basically I need to map all int[] CategoryID items from the ViewModel to the ID propery of the List Categories type in the Model. For the reverse mapping I need to map all ID's from the Category type to my int[] (or List) CategoryID but I think I have that figured out (haven't gotten there yet). If I need to do something similar for the reverse mapping, please let me know.

仅供参考，我的INT []在我的ViewModel类别ID粘合到我的视图中的SelectList。

FYI, my int[] CategoryID in my ViewModel is bonded to a SelectList in my View.

我希望codePLEX项目网站AutoMapper有一个更完整的文档，但我很高兴他们至少有他们有什么。

I wish the CodePlex project site for AutoMapper had a more complete documentation but I'm happy they at least have what they have.

感谢您！

推荐答案

您可以做到以下几点：

Mapper
    .CreateMap<int, Category>()
    .ForMember(
        dest => dest.ID, 
        opt => opt.MapFrom(src => src)
);

Mapper
    .CreateMap<GatewayViewModel, Gateway>()
    .ForMember(
        dest => dest.Categories, 
        opt => opt.MapFrom(src => src.CategoryID)
);

var source = new GatewayViewModel
{
    CategoryID = new[] { 1, 2, 3 }
};

Gateway dst = Mapper.Map<GatewayViewModel, Gateway>(source);

显然，你不能从视图模型到模型中的名称属性，因为它不是present映射。

Obviously you cannot map the Name property from the view model to the model because it is not present.

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