How to Deserialize JSON with Dynamic Keys into a List of Objects in C#?

JSON deserialization handling dynamic keys in C#

When receiving JSON responses with dynamic keys, a common task is to deserialize them into a list of objects in C#. Let us consider a scenario where the JSON response contains the following content:

<code class="language-json">{
"nasdaq_imbalance": {
    "name": "nasdaq_imbalance",
    "group": "Market Data",
    "description": null
},
"DXOpen IM": {
    "name": "DXOpen IM",
    "group": "Daily",
    "description": null
},
"Float Shares": {
    "name": "Float Shares",
    "group": "Daily",
    "description": null
}
}</code>

Handle deserialization of dynamic keys

In order to deserialize this JSON into a list of objects, you can use the following steps:

1. Deserialize JSON to Dictionary<string, Dataset> using Json.NET.
2. Loop through the dictionary to populate the list of Dataset objects.

The following is a sample code:

<code class="language-csharp">using Newtonsoft.Json;
using System.Collections.Generic;

// ...

var jsonObject = JsonConvert.DeserializeObject<Dictionary<string, Dataset>>(json);
var datasetList = new List<Dataset>();

foreach (var item in jsonObject)
{
    datasetList.Add(item.Value);
}</code>

This code will create a Dataset list of objects containing the values ​​of the dynamic keys in the JSON response. The resulting list will be:

<code>datasetList[0].name = "nasdaq_imbalance"
datasetList[0].group = "Market Data"

datasetList[1].name = "DXOpen IM"
datasetList[1].group = "Daily"

datasetList[2].name = "Float Shares"
datasetList[2].group = "Daily"</code>

Please note that this method assumes that the Dataset class is defined and contains the name and group properties. You need to adjust the code according to your actual Dataset class structure.

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