Deserialize json to a customize object with json.net-CodePudding

I'm trying to deserialize json-formatted response below.

{
  "context": "xxxxxx"
  "value": [
      {
        "Id": "123"
        "Time": "2022-12-01"
      }
      {
        "Id": "123"
        "Time": "2022-12-01"
      }
      ....
  ]
}

According to this: https://www.newtonsoft.com/json/help/html/deserializeobject.htm, this code should work.

 public class WorkingSetContent
    {
        /// <summary>Collection ID</summary>
        [JsonProperty("context")]
        public string Context { get; set; }

        /// <summary>UserRelationship</summary>
        [JsonProperty("value")]
        public IList<ItemClass> Items { get; set; }
   }

But I'm getting a build error : "Change 'Items' to be read-only by removing the property setter."

I changed the setter to private to avoid this build error, then I was able to run it, but it causes a runtime error as null value is passed.

CodePudding user response：

This is the code analysis rule you're running up against.

One option is to initialize your collection property with an empty list:

    [JsonProperty("value")]
    public IList<ItemClass> Items { get; } = new List<ItemClass>();

However, the code analysis rule explicitly says:

You can suppress the warning if the property is part of a Data Transfer Object (DTO) class.

Since you're deserializing this class from JSON, I think it's safe to assume it's a DTO. I would recommend using a pattern in your .globalconfig or .editorconfig files to suppress this rule for all of your DTO model classes.

CodePudding user response：

You have to fix your json

 {
  "context": "xxxxxx",
  "value": [
      {
        "Id": "123",
        "Time": "2022-12-01"
      },
      {
        "Id": "123",
        "Time": "2022-12-01"
      }
  ]
}