Format JSON data in .NET

Question

I need JSON data in a format like data: { MyClass0: {somedata}, MyClass1: {somedata} }.

But I am getting data in the format data: { MyClass: {somedata}, MyClass: {somedata} }.

MyClass is a class in which I have created some properties.

Here is my classes file:

public class data {
    data(MyClass _myClass) {
        subData = _myClass;
    }
    public MyClass subData { get; set; }
}

public class MyClass {
    public value { get; set; }
}

Here is my WebMethod

foreach(var d in rows) {
    list.add(new data(new MyClass(d)));
}

return new data {
    subData = list
};

what are you using now? what have you tried? How about a StringBuilder? — Andras Zoltan
– Andras Zoltan, Commented Jan 18, 2012 at 0:15
i have two classes (data, MyClass), in data class i have created a property of type List<MyClass>. — Ankit Agrawal
– Ankit Agrawal, Commented Jan 18, 2012 at 0:19
a List<MyClass> will generally be represented as an array of objects in JSON — Russ Cam
– Russ Cam, Commented Jan 18, 2012 at 0:28

Peter Mortensen · Accepted Answer · 2014-11-09 09:54:30Z

2

Neither of the examples that you have given are valid JSON. Valid examples would be

// MyClass0 and MyClass1 each an object value
{ "data" : { "MyClass0" : {}, "MyClass1" : {} } }

// MyClass' value is an array of objects
{ "data" : { "MyClass" : [{}, {}] } }

The JSON specification stipulates that there should be key/value pairs and keys should be enclosed in double quotes (in addition, so too must string values).

How are you generating the JSON string? Three of the more popular options are

edited Nov 9, 2014 at 9:54

Peter Mortensen

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answered Jan 18, 2012 at 0:24

Russ Cam

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3 Comments

Ankit Agrawal Over a year ago

I have webmethod of type data, and in ajax call which converted to json object.

Ankit Agrawal Over a year ago

public class data{ public List<MyClass> MyClass { get; set; } }

Russ Cam Over a year ago

@AnkitAgrawal you can edit the question to add in the relevant code. I would expect that class structure to produce JSON that matches my second example. Then it's a simple case of looping over the array to get the objects.

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