Getting the value of a returned string from Ajax JQuery

Question

I have a web service which adds an item to the database after being called using JQuery Ajax. The web service returns a string, and I can't manage to pick up only the string part returned. Instead I receive {"d":"The message I want to display"} using alert(data);.

I also tried alert(Object.keys(JSON.parse(data))[0]); which returns d and alert(Object.keys(JSON.parse(data))[1]); or alert(data.d); returns Undefined.Here's what my code looks like

function AddAjaxJQuery() {
            var isbn = $('#<%= txtIsbn.ClientID %>').val();

            var pdata = { "book": { "Isbn": isbn} };

            $.ajax({
                type: "POST",
                contentType: "application/json; charset=utf-8",
                url: "/BookWebService.asmx/InsertBook",
                data: JSON.stringify(pdata),
                dataType: 'text',
                async: true,
                success: function (data, textStatus) {
                    alert(data);
                },
                error: function (error) {
                    alert(data);
                }
            });
        }

Long Nguyen · Accepted Answer · 2015-11-21 18:45:22Z

4

If your data is a string, then you should parse it to JSON first:

var dataInJson = JSON.parse(data);
alert(dataInJson.d)

edited Nov 21, 2015 at 18:45

answered Nov 21, 2015 at 18:43

Long Nguyen

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1 Comment

Bubblesphere Over a year ago

Yes, it returns Undefined using alert(data.d);

Zohaib Ijaz · Accepted Answer · 2015-11-21 18:44:34Z

0

You have to access property d of data (response) so Replace success callback with

success: function (data, textStatus) {
    alert(data.d);
},

answered Nov 21, 2015 at 18:44

Zohaib Ijaz

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