Encode object to JSON

Question

Hoping I don't have to reinvent the wheel here but does anyone know if there is a class in C# similar to the one supplied by Adobe for AS3 to convert a generic object to a JSON string?

For example, when I encode an array of objects.

new JSONEncoder(arr).getString();

Output:

[
    {"type":"mobile","number":"02-8988-5566"},
    {"type":"mobile","number":"02-8988-5566"}
]

possible duplicate of [How to create JSON string in C#](http://stackoverflow.com/questions/1056121/how-to-create-json-string-in-c-sharp) — nawfal, Jun 15 '15 at 09:25

score 31 · Accepted Answer · answered Feb 18 '10 at 09:13

31

in C#:

var jsonSerializer = new System.Web.Script.Serialization.JavaScriptSerializer();
            string json = jsonSerializer.Serialize(yourCustomObject);

answered Feb 18 '10 at 09:13

Brian

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30

1

`JavaScriptSerializer` is a pain to use. You should give a try to [Json.Net](http://james.newtonking.com/json) – Falanwe Sep 11 '14 at 06:24
1

Add **System.Web.Extensions** into References see [https://msdn.microsoft.com/fr-fr/library/system.web.script.serialization.javascriptserializer%28v=vs.110%29.aspx] – themadmax Sep 20 '16 at 12:51

Falanwe · Answer 2 · 2016-10-27T19:32:48.757

14

I recommand using Json.NET. It's not part of .Net's the core libraries, but it is very widely used, including by a lot of Microsoft's products. Also it's the single most used nuget package. And it's both easier to use than JavaScriptSerializer and more efficient.

var jsonString = JsonConvert.SerializeObject(someObjet);

var myObject = JsonConvert.DeserializeObject<MyType>(jsonString);

edited Oct 27 '16 at 19:32

answered Sep 11 '14 at 06:23

Falanwe

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I belive it is "SerializeObject" and not "Serialize" in the latest version – PSSGCSim Mar 17 '16 at 08:07
I also had to add `.ToString()` at the end or it produced an error. `var myObject = JsonConvert.DeserializeObject(jsonString.ToString());` – guitarlass Oct 27 '16 at 07:57
@guitarlass : that's pretty weird. jsonString should be a string from the start! – Falanwe Oct 27 '16 at 19:33
yeah it is, i even printed it to test. yet i had to convert it before deserializing – guitarlass Oct 28 '16 at 09:07

score 3 · Answer 3 · answered Feb 18 '10 at 09:12

The following methods work well for me (using the JavaScriptSerializer):

public static T FromJson<T>(string input)
{
    JavaScriptSerializer serializer = new JavaScriptSerializer();
    return serializer.Deserialize<T>(input);
}

public static string ToJson(object input)
{
    JavaScriptSerializer serializer = new JavaScriptSerializer();
    return serializer.Serialize(input);
}

score 3 · Answer 4 · answered Feb 18 '10 at 09:13

Check this out DataContractJsonSerializer.

Use the DataContractJsonSerializer to serialize and deserialize data in the JavaScript Object Notation (JSON) format. This serialization engine converts JSON data into instances of .NET Framework types and back into JSON data

Encode object to JSON

4 Answers4

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