Question

How to get array data from json in c#?

Here is the ajax code

        $.ajax({
            type: "GET",
            url: "/Weather/GetWeather",
            data: { "a": ["1,","2&"], "b" : 4 },
            success: onScc,
            error: onErr,
            dataType: "json"
        });

The ajax above will invoke method named GetWeather in Asp.net MVC.

    public string GetWeather()
    {
        //Request.QueryString.ToString()  --->  a%5b%5d=1%2c&a%5b%5d=2%26&b=4
        string a = HttpUtility.UrlDecode(Request.QueryString.ToString());
        // string a ---> a=1,&a=2&&b=4
        .....
    }

what I got from .net is —–> a[]=1,&a[]=2&&b=4

what I want to get is like —-> string[]a = ["1", "2&"] and int b = 4. BTW, I don’t want to define an object that includes a and b since these parameters are dynamic.

Answer 1

you can use dynamic

 dynamic lst = new JavaScriptSerializer().Deserialize<dynamic>
               (@"{ ""a"": [""1"",""2""], ""b"" : 4}");

reference System.Web.Extensions

edit

after looking , you are not sending JSON to .net !!!

var myObject = { "a": ["1,","2&"], "b" : 4 };

console.log(JSON.stringify(myObject));

===> '{"a":["1,","2&"],"b":4}'
you should send the STRING value rather then the OBJECT which you did !

now youll have :

change :

  data: { "a": ["1,","2&"], "b" : 4 },

to

  data:{"myValue" : JSON.stringify({ "a": ["1,","2&"], "b" : 4 })},

and in c# read : myValue