将动态Json转换为更具体的东西

Question

How can I deserialize the JSON below to a C# array or something more manageable.

{
  "data": [
    {
      "PropertyName": [
        {
          "Key1": "test",
          "Key2": "afafa"
        },
        {
          "Key1": "test",
          "Key2": "afafa"
        }
      ],
      "PropertyName2": [
        {
          "Key1": "test",
          "Key2": "afafa"
        },
        {
          "Key1": "test",
          "Key2": "afafa"
        }
      ]
    }
  ]
}

It comes in as a dynamic parameter like this:

public IActionResult SAve([FromBody] dynamic mapping)

I normally would make this a concrete class but "PropertyName" will change to different names, so I need something flexible. The contents of it can be concrete as it is just two properties.

I am thinking that it could be like a dictionary.

Dictionary<string, ConcreteClass>()

I just don't know how to get it into that form.

Edit.

I have gone ahead and did the suggestion but it does not work

{{
  "data": [
    {
      "propertyName": [
        {
          "key1": 1,
          "key2": "1"
        },
        {
          "key1": 2,
          "key2": "2"
        }
      ]
    }
  ]
}}

I tried to convert like this

 var ddd = JsonConvert.DeserializeObject<List<MappingDto>>(mapping.data.ToString());

this makes an empty object in the array. If I don't have it wrapped in a collection then I get a different error

 public class MappingDto
    {
        public List<Dictionary<string, List<Item>>> Items { get; set; }
    }

  public class Items
    {
        public string Key1{ get; set; }
        public string Key2{ get; set; }

    }

Answer 1

For this JSON, a concrete class structure that handles the dynamic property names as you described would look like this:

public class MappingDto
{
    public List<Dictionary<string, List<Item>>> Data { get; set; }
}

public class Item
{
    public string Key1 { get; set; }
    public string Key2 { get; set; }
}

Be sure to update your method signature to use the new class instead of dynamic :

public IActionResult SAve([FromBody] MappingDto mapping)

You can then access the data like this (for example):

foreach (var dict in mapping.Data)
{
    foreach (var kvp in dict)
    {
        Debug.WriteLine(kvp.Key);
        foreach (var item in kvp.Value)
        {
            Debug.WriteLine(" Key1: " + item.Key1); 
            Debug.WriteLine(" Key2: " + item.Key2); 
        }
    }
}

Fiddle: https://dotnetfiddle.net/OGylPh