Can not read JSON data.

Question

I am creating application where i send data in form of ajax request and accept in form of JSON, i want to display that JSON data in gridview, but not succeded in it. when i try to print data in JSON(data.d.length) it display 272 (i think it is counting spaces also). I need help in reading data from JSON and bind it to GridView.

 

In the below way i am sending data to webmethod in ajax request

 

$.ajax({

type: "POST",

url: "StudentData.aspx/GetData",

data: JSON.stringify(obj),

contentType: "application/json; charset=utf-8",

dataType: "json",

success: OnSuccess,

failure: function (response) {

alert(response.d);

},

error: function (response) {

alert(response.d);

}

});

 

Below code works perfectly fine and send data in JSON format. 

 

[WebMethod]

//public static List<Student> GetData()

public static string GetData(string name)

{

 string constr = @"connection string";

string sql = "query";

SqlDataAdapter da = new SqlDataAdapter(sql, constr);

DataSet ds = new DataSet();

da.Fill(ds);

return JsonConvert.SerializeObject(ds, Newtonsoft.Json.Formatting.Indented);

} 

 

//In below code when i print data.d.length it display 272. 

function OnSuccess(data) {

alert("In success");

alert(data.d.length);

}