AutoMapper - 映射视图模型子集合 [英] AutoMapper - mapping child collections in viewmodel

问题描述

我有一个需要显示某个的IEnumerable 字段分号分隔文本框一个ViewModel。起初我以为使用 DefaultModelBinder 来改造它，但我遇到了麻烦思考如何实现它在两个方向（DTO＆LT; - >视图模型）。

I have a viewmodel that needs to display a certain IEnumerable field as semicolon-separated textbox. At first I thought of using DefaultModelBinder to transform it, but I had trouble thinking how to achieve it in both directions (dto <-> viewmodel).

绰号是我想显示为一个TextBox，用分号分开场。

Nicknames is the field I'm trying to display as one textbox separated by semicolon.

public class Parent
{
    public IEnumerable<Child> Children { get; set; }
}

public class Child
{
    public IEnumerable<string> Nicknames { get; set; }
}

所以我决定尝试AutoMapper，我创建了两个的ViewModels：

So I decided to try AutoMapper, I created two ViewModels:

public class ParentViewModel
{
    public IEnumerable<ChildViewModel> Children { get; set; }
}

public class ChildViewModel
{
    public string Nicknames { get; set; }
}

然后，我创建的映射，喜欢本作的儿童（不再赘述其他路转换）

Then, I created mappings, like this for the children (omitted the other-way conversion for brevity)

Mapper.CreateMap<Child, ChildViewModel>().ForMember(
d => d.Nicknames, o => o.ResolveUsing<ListToStringConverter>().FromMember(s => s.Nicknames);

然后，父，创造了一个天真的地图（再次，省略了其他路）

Then, for the parent, created a naive map (again, omitted the other-way)

Mapper.CreateMap<Parent, ParentViewModel>();

我真的希望孩子映射自动发生，但他们没有，我已经创造了太多的正确的code，解决一个非常简单的问题，这在其他任何简单的/老的非MVC环境，我会用很长的时间前完成:)我怎么能继续，并告诉AutoMapper无需编写的另一个孩子们成员​​解析改造的孩子们。

I truly expected the child mappings occur automatically, but they don't, I've already created too much "proper" code to solve a really simple problem which in any other simpler/older non-MVC environment, I'd be done with a long time ago :) How can I proceed and tell AutoMapper to transform the children without writing another "children member resolver".

我有这个overthought并有一个简单的方法？

Have I overthought this and there's a simpler way?

感谢您！

推荐答案

尝试

Mapper.CreateMap<Parent, ParentViewModel>();
Mapper.CreateMap<Child, ChildViewModel>();

var v = Mapper.Map<Parent, ParentViewModel>(parent);

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