自动映射器忽略集合对象中的子属性

Question

我有相关的文章和类别模型：

public class Article
{
    ...

    public Category Category { get; set; }
}

 public class Category
 {
     ...

     public ICollection<Article> Articles { get; set; }
 }

这些是他们的ModelViews：

public class ArticleViewModel
{
    ...

    public CategoryViewModel Category { get; set; }
}

public class CategoryViewModel
{
    ...

    public ICollection<ArticleViewModel> Articles { get; set; }
}

这就是Automapper：

CreateMap<Article, ArticleViewModel>()
.ReverseMap();

代码运行到此错误：

Newtonsoft.Json.JsonSerializationException: Self referencing loop detected with type 'ArticleViewModel'. Path 'category.articles'.

在获取文章时，如何忽略Category.Articles中的AutoMapper集合？

Answer 1

您可以尝试使用此代码

var deserializeSettings = new JsonSerializerSettings { ObjectCreationHandling = ObjectCreationHandling.Replace };

            return JsonConvert.DeserializeObject</*your type*/>(JsonConvert.SerializeObject(/*your source*/, Formatting.None, new JsonSerializerSettings { ReferenceLoopHandling = ReferenceLoopHandling.Ignore }), deserializeSettings);