How to read data from JSON

Question

I can receive the response in JSON, but I am not able to read it. Here is my code:

$(document).ready(function () {
    $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        url: "Default.aspx/BindDatatable",
        data: "{}",
        dataType: "json",
        success: function (data) {
            for (var i = 0; i < data.length; i++) {
                alert(data.d[i].name);
            }
        },
        error: function (result) {
            alert("Error");
        }
    });
});

Answer 1

Instead of $.ajax, try using $.getJSON, or use JSON.parse(data) when data comes, The actual problem is with JSON data, you need to convert it into JavaScript object to use it. Once it parse and converts into JavaScript Object, you can Access like data.d[i].name

Answer 2

As far as i understand in your case you are getting JSON Object in variable data in method success then and you json format is this

"d":[{"__type":"_Default+UserDetails","id":1,"name":"mks","email":"aa@gmail.com",‌​"age":22}]

then you just have to change the following condition

success: function (data) {
        for (var i = 0; i < data.d.length; i++) {
            alert(data.d[i].name);
        }
    },