元素"Id"与类的任何字段或属性都不匹配 [英] Element 'Id' does not match any field or property of class

问题描述

我从MongoDB中的集合中得到了结果，结构与下面相同

I got the result from the collection in MongoDB, the structure is the same as below

[DataContract]
public class Father
{
    [BsonId]
    [DataMember]
    public MongoDB.Bson.ObjectId _id { get; set; }

    [DataMember]
    public string Id { get; set; }

    [DataMember]
    public List<Child> childs { get; set; }
}

[DataContract]
public class Child
{
    [DataMember]
    public string Id { get; set; }

    [DataMember]
    public int Name { get; set; }
}

当我尝试此操作时:

List<Father> f = result.ToList();

它调用Element 'Id' does not match any field or property of the class Model.Child

我认为它只是将"Id"作为其他名称.

I think it just takes 'Id' as something else.

我该如何处理?谢谢

推荐答案

我通过在类声明的顶部添加 [BsonIgnoreExtraElements] 解决了类似的问题. ObjectId由MongoDB内部维护，在App级别不需要，因此在类声明中我不需要此字段.希望这对某人有帮助

I resolved similar issue by adding [BsonIgnoreExtraElements] on top of the class declaration. ObjectId is internally maintained by MongoDB which is not needed at the App level, hence in the class declaration I don't require this field. Hope this would help someone

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