如何使用包含一个AutoMapper IList的财产深克隆对象 [英] How to deep clone objects containing an IList property using AutoMapper

问题描述

我想深克隆使用AutoMapper以下类：

I am trying to deep clone the following class using AutoMapper:

public class MainData
{
    public MainData()
    {
        Details = new List<Detail>();
    }

    public int Id { get; private set; }
    public DateTime LastUpdate { get; private set; }
    public IList<Detail> Details { get; private set; }
    public int Prop1 { get; set; }
    public int Prop2 { get; set; }

    public void AddDetail(Detail detail)
    {
        Details.Add(detail);
    }

    public void RemoveDetail(Detail detail)
    {
        Details.Remove(detail);
    }

    public MainData Clone()
    {
        Mapper.Reset();
        Mapper.CreateMap<MainData, MainData>().ForMember(d => d.Id, o => o.Ignore());
        // Mapper.CreateMap<Detail, Detail>().ForMember(d => d.Id, o => o.Ignore()); // REMOVED
        var newMainData = new MainData();
        Mapper.Map(this, newMainData);
        newMainData.Details = this.Details.Select(item => item.Clone()).ToList(); // ADDED
        return newMainData;
    }
}

public class Detail
{
    public int Id { get; private set; }
    public string Name { get; set; }
    public double Area { get; set; }
    public double Height { get; set; }

    public Detail Clone() // ADDED
    {
        Mapper.CreateMap<Detail, Detail>().ForMember(d => d.Id, o => o.Ignore());
        var newDetail = new Detail();
        Mapper.Map(this, newDetail);
        return newDetail;
    }
}

的

克隆办法正常工作的MainData性能，但似乎只能做详细列表的浅表副本。我曾尝试加入 .ForMember（D => d.Details，O => o.UseDestinationValue（））但是，这并不在所有复制的详细列表。 ？我怎样才能得到详细信息列表深克隆以及即，所以我结束了两个完全独立的对象包括所有的列表项

The Clone method works fine for the MainData properties but seems to only do a shallow copy of the Details list. I have tried adding .ForMember(d => d.Details, o => o.UseDestinationValue()) but this does not copy the Details list at all. How can I get the Details list deep cloned as well ie, so I end up with two totally independent objects including all the list items?

更新：我需要排除，因为我使用与NHibernate这些对象，因此不能肯定是否可序列化解决方案将做到这一点Id属性。

UPDATE: I need to exclude the Id property as I am using these objects with NHibernate so not sure if the Serializable solution will do this.

UPDATE2：修改了上面的代码克隆的IList了。这似乎很好地工作，因为我可以排除，使NHibernate的认为它已经保存的属性。

UPDATE2: Modified the above code to clone the IList too. This seems to work fine as I can exclude properties that make NHibernate think it has already been saved.

推荐答案

下面是一个解决方案与 ValueInjecter

here is one solution with the ValueInjecter

        var clone = new MainData();

        clone.InjectFrom(mainData);//mainData is your source

        mainData.Details.AsParallel.ForAll(detail => 
        {
            var dc = new Detail();
            dc.InjectFrom(detail);
            clone.AddDetail(dc);
        });

这有私人制定者都不会设置属性，（看起来合理）

好​​运;）

the properties that have private setters are not going to be set, (looks reasonable)
good luck ;)

编辑：
我做了一个更好的解决方案看的这里

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