Newtonsoft.Json使用属性值作为根名称进行序列化

Question

I have to serialize a list of objects in Json in C#, I'm using Newtonsoft.Json I need to use the name value of the objects as the root name, like this:

"employees"  :
  {
    "John" :
      {
        "id" : 18,
        "email" : "john@email.com"
       },
    "Jack" :
       {
         "id" : 21,
         "email" : "jack@email.com"
        }
   }

Where John and Jack are the values of the name property for my employees

Answer 1

Not the best solution but quick You can use dictionary before serialization like this

class Example
{
    static void Main()
    {
        var l = new[]
        {
            new Employee {Id = 1, Name = "1", Email = "1"},
            new Employee {Id = 2, Name = "2", Email = "2"}, 
            new Employee {Id = 2, Name = "3", Email = "3"}
        };

        var s = JsonConvert.SerializeObject(new { employees = l.ToDictionary(x => x.Name, x => x) });
    }


    class Employee
    {
        public int Id { get; set; }

        [JsonIgnore]
        public string Name { get; set; }
        public string Email { get; set; }
    }
}

Output:

{"employees":{"1":{"Id":1,"Email":"1"},"2":{"Id":2,"Email":"2"},"3":{"Id":2,"Email":"3"}}}

You can find more information here https://www.newtonsoft.com/json/help/html/SerializationAttributes.htm I think you can solve this in more elegant way using JsonConverterAttribute but it can be not easy