CODEWITHSUNDEEP
c#.netjsondeserialization
Ammar Khan
Ammar Khan

Reputation: 356

Deserialize Json List to C# List objects

I have class which return json string but I want to deserilize it into C# List Objects. My current code look like this

public class JsonBuilder
    {
        public static string BuildJson(DateTime fromDate, DateTime toDate)
        {
            var list = new List<dynamic>();

           // create list with json object from service

            var jsonObjList = JsonConvert.SerializeObject(list);
            var des = (List<JsonObject>)JsonConvert.DeserializeObject(jsonObjList, typeof(List<JsonObject>));

            return JsonConvert.SerializeObject(list);
        }

Exception thrown when it tries to deserialize the "serialized" json string

An exception of type 'Newtonsoft.Json.JsonSerializationException' occurred in Newtonsoft.Json.dll but was not handled in user code

Additional information: Error converting value 


InnerException:

{"Could not cast or convert from System.String to MvcWebApp.Models.JsonObject."}

Upvotes: 1

Views: 4740

Answers (3)

aloisdg
aloisdg

Reputation: 23531

I would try with this class 

public class Author
{
    public int id { get; set; }
    public string slug { get; set; }
    public string name { get; set; }
    public string first_name { get; set; }
    public string last_name { get; set; }
    public string nickname { get; set; }
    public string url { get; set; }
    public string description { get; set; }
}

public class CustomFields
{
    public List<string> tags { get; set; }
}

public class Post
{
    public int id { get; set; }
    public string type { get; set; }
    public string slug { get; set; }
    public string url { get; set; }
    public string status { get; set; }
    public string title { get; set; }
    public string title_plain { get; set; }
    public string content { get; set; }
    public string excerpt { get; set; }
    public string date { get; set; }
    public string modified { get; set; }
    public List<object> categories { get; set; }
    public List<object> tags { get; set; }
    public Author author { get; set; }
    public List<object> comments { get; set; }
    public List<object> attachments { get; set; }
    public int comment_count { get; set; }
    public string comment_status { get; set; }
    public CustomFields custom_fields { get; set; }
}

public class YourObject
{
    public string status { get; set; }
    public int count { get; set; }
    public int count_total { get; set; }
    public int pages { get; set; }
    public List<Post> posts { get; set; }
}

Then, you deserialize with this :

var yourObject = JsonConvert.DeserializeObject<YourObject>(json);

Upvotes: 0

Nimmi
Nimmi

Reputation: 690

try this

 var jsonObjList = JsonConvert.SerializeObject(list);
 dynamic resultList = JsonConvert.DeserializeObject(jsonObjList);

Upvotes: 0

Fabian Bigler
Fabian Bigler

Reputation: 10915

Have you tried this:

var des = (List<DeserializeObjects>)JsonConvert.DeserializeObject(jsonObjList, jsonObjList.GetType()));

or this:

var des = (List<DeserializeObjects>)JsonConvert.DeserializeObject(jsonObjList, typeof(List<dynamic>));

else this post could also help you to achieve your goal:

Deserialize json object into dynamic object using Json.net

Upvotes: 1

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