Question

I am trying to Deserialize (using Newtonsoft) JSON and convert to List in c#. It is throwing me error ” Cannot deserialize JSON object into type ‘System.Collections.Generic.List`1[obJson]’.”

Here is my JSON string:

  string webContent = "{\"searchResults\":     [{\"gefId\":0,\"resultNumber\":1,\"distance\":4.2839,\"sourceName\":\"MQA.MQ_34172_HD\",\"name\":\"USER_DEFINED\"},{\"gefId\":0,\"resultNumber\":1,\"distance\":4.2839,\"sourceName\":\"MQA.MQ_34172_HD\",\"name\":\"USER_DEFINED\"}]}";

Conversion, this line is throwing error:

  List<obJson> result = JsonConvert.DeserializeObject<List<obJson>>(webContent);

My custom classes:

public class SearchResults
{
    public int gefId { get; set; }
    public int resultNumber { get; set; }
    public decimal distance { get; set; }
    public string sourceName { get; set; }
    public string name { get; set; }
}

public class obJson
{
    public SearchResults SearchResults { get; set; }
}

Answer 1

Since your json is an object whose searchResults member contains an array, change your obJson as below

public class obJson
{
    public List<SearchResults> searchResults { get; set; }
}

and deserialize as

obJson result = JsonConvert.DeserializeObject<obJson>(webContent);