CODEWITHSUNDEEP
c#jsonasp.net-mvc-3c#-4.0
Shahbaz Chishty
Shahbaz Chishty

Reputation: 502

Deserialize JSON string to c# object

My Application is in Asp.Net MVC3 coded in C#. This is what my requirement is. I want an object which is in the following format.This object should be achieved when I deserialize the Json string.

var obj1 = new { arg1=1,arg2=2 };

enter image description here

After using the below code:

string str = "{\"Arg1\":\"Arg1Value\",\"Arg2\":\"Arg2Value\"}";
JavaScriptSerializer serializer1 = new JavaScriptSerializer();
object obje = serializer1.Deserialize<object>(str);

The object what i get i.e obje does not acts as obj1

enter image description here

Here, in this example my JSON string is static, but actually JSON string is going to be dynamically generated runtime, so i won't be able get Arg1 and Arg2 all the time.

Upvotes: 30

Views: 157420

Answers (6)

sachin
sachin

Reputation: 220

solution :

 public Response Get(string jsonData) {
     var json = JsonConvert.DeserializeObject<modelname>(jsonData);
     var data = StoredProcedure.procedureName(json.Parameter, json.Parameter, json.Parameter, json.Parameter);
     return data;
 }

model:

 public class modelname {
     public long parameter{ get; set; }
     public int parameter{ get; set; }
     public int parameter{ get; set; }
     public string parameter{ get; set; }
 }

Upvotes: 4

Ridwan Galib
Ridwan Galib

Reputation: 201

Use this code:

var result=JsonConvert.DeserializeObject<List<yourObj>>(jsonString);

Upvotes: 17

A. Acosta
A. Acosta

Reputation: 65

This may be useful:

var serializer = new JavaScriptSerializer();
dynamic jsonObject = serializer.Deserialize<dynamic>(json);

Where "json" is the string that contains the JSON values. Then to retrieve the values from the jsonObject you may use

myProperty = Convert.MyPropertyType(jsonObject["myProperty"]);

Changing MyPropertyType to the proper type (ToInt32, ToString, ToBoolean, etc).

Upvotes: 4

Veni Souto
Veni Souto

Reputation: 57

Same problem happened to me. So if the service returns the response as a JSON string you have to deserialize the string first, then you will be able to deserialize the object type from it properly:

string json= string.Empty;
using (var streamReader = new StreamReader(response.GetResponseStream(), true))
        {
            json= new JavaScriptSerializer().Deserialize<string>(streamReader.ReadToEnd());

        }
//To deserialize to your object type...
MyType myType;
using (var memoryStream = new MemoryStream())
         {
            byte[] jsonBytes = Encoding.UTF8.GetBytes(@json);
            memoryStream.Write(jsonBytes, 0, jsonBytes.Length);
            memoryStream.Seek(0, SeekOrigin.Begin);
            using (var jsonReader = JsonReaderWriterFactory.CreateJsonReader(memoryStream, Encoding.UTF8,          XmlDictionaryReaderQuotas.Max, null))
            {
                var serializer = new DataContractJsonSerializer(typeof(MyType));
                myType = (MyType)serializer.ReadObject(jsonReader);

            }
        }

4 Sure it will work.... ;)

Upvotes: 3

Eric
Eric

Reputation: 401

I believe you are looking for this:

string str = "{\"Arg1\":\"Arg1Value\",\"Arg2\":\"Arg2Value\"}";
JavaScriptSerializer serializer1 = new JavaScriptSerializer();
object obje = serializer1.Deserialize(str, obj1.GetType());

Upvotes: 9

Marc
Marc

Reputation: 6771

I think the JavaScriptSerializer does not create a dynamic object.

So you should define the class first:

class MyObj {
    public int arg1 {get;set;}
    public int arg2 {get;set;}
}

And deserialize that instead of object:

serializer.Deserialize<MyObj>(str);

Not testet, please try.

Upvotes: 25

Related Questions