Json string to object C# syntax

Question

I am new to .net and I am trying to convert JSON string to object. I have written following code but it gives me syntax errors:

JavaScriptSerializer JSS = new JavaScriptSerializer();
T obj = JSS.Deserialize<T>(String);

It doesn't recognize T in the code. Please help.

I dont want to create any custom class. Can I get JSON from json string which I can use to find values of given keys

Duplicate: http://stackoverflow.com/questions/5979434/deserializing-json-array-into-strongly-type-net-object — Philip Pittle, Jun 03 '14 at 10:36
Don't you need a class to deserialize, rather than a type e.g. `String`? — Dominic Zukiewicz, Jun 03 '14 at 10:37
@gliese581g: 'Can I get JSON from json string which I can use to find values of given keys' - You mean like a `Dictionary`? No, you can't. — Dominic Zukiewicz, Jun 03 '14 at 10:49

score 1 · Answer 1 · answered Jun 03 '14 at 10:38

1

You didn't specify T in anywhere.This code should be inside of a generic class or method where T is specified as generic type parameter.

answered Jun 03 '14 at 10:38

Selman Genç

100,147
13
119
184

In python, we can get json(dictionary) from json string. Can I get JSON from json string which I can use to find values of given keys. – Jun 03 '14 at 10:42

score 1 · Answer 2 · answered Jun 03 '14 at 10:42

Taking your code literally:

JavaScriptSerializer JSS = new JavaScriptSerializer();
T obj = JSS.Deserialize<T>(String);

String is a type, not an object. You need to pass in the variable you want to deserialize:

public class Person
{
   public int Id { get;set; }
   public string Name { get;set; }
}

// Then somewhere else

string json = @"{ ""Id"": 10, ""Name"": ""Jeremy Vines"" }";

JavaScriptSerializer JSS = new JavaScriptSerializer();
Person obj = JSS.Deserialize<Person>(json);

Console.WriteLine("Id: {0}, Name: {1}", obj.Id, obj.Name);

score 0 · Answer 3 · answered Jun 03 '14 at 10:37

0

Try replacing T with the object type that you are expecting to get. Or even object, if you don't know.

answered Jun 03 '14 at 10:37

nl-x

11,762
7
33
61

Json string to object C# syntax

3 Answers3