使用json.net反序列化和对象问题

Question

USing json.net to deserialize json to a list. My issue is that I am getting the following message:

Newtonsoft.Json.JsonReaderException: 'Unexpected character encountered while parsing value: [. Path 'data', line 1, position 9.'

My code looks like this:

Dictionary<string, string> JSONObj = JsonConvert.DeserializeObject<Dictionary<string, string>> (response.Content.ToString());

and...

internal class Projects
{
    internal object id;
    internal string gid;
    internal string name;
    internal string resource_type;
}

response.Content.ToString() looks like this:

{ "data": [{ "id": 123456, "gid": "789", "name": "Tooling - Start tool", "resource_type": "project" }, { "id": 123456, "gid": "789", "name": "Hold for Details", "resource_type": "project" }] }

My json validates. I am certain that it is the formatting of the json but I do not understand enough to understand what is wrong. What is wrong with my approach? How do I get this formatted data to concert to a List of Projects?

Answer 1

According to the JSON, there's some root object ("data"), so your model should look like this:

public class Project
{
    public int id { get; set; }
    public string gid { get; set; }
    public string name { get; set; }
    public string resource_type { get; set; }
}

public class RootObject
{
    public List<Project> data { get; set; }
}

Then for parsing your code also changes:

var JSONObj = JsonConvert.DeserializeObject<RootObject>(response);

I'd also suggest thinking for a second about class name - your class is actually only one Project , not any group/collection of Projects .
Also setting type of id to object looks like adding unnecessary overhead - it can be simply int / long .