Jquery UI AutoComplete not working with asp.net

Question

This is my Jquery:

$("#completeMe").autocomplete({
    source: function (request, response) {
        $.ajax({
            url: "/Main.aspx/GetAutocomplete",
            type: "POST",
            dataType: "json",
            data: Data,
            contentType: "application/json; charset=utf-8",
            success: function (data) {
                response($.map(data, function (item) {
                    return { value: item };
                }))

            }
        })

    }
});

This is my Main.aspx.cs:

[System.Web.Services.WebMethod]
public static List<string> GetAutocomplete(string cityName)
{
    List<string> City = new List<string>() { "hh", "hh1" };

    return City;
}

Now this works when i return string instead of List. But when I use it like this with List I get:

Uncaught TypeError: undefined is not a function jquery-ui.min.js:9...

I don't understand, this solution seem to work to many people on web, maybe it has something to do with my jquery/ui versions? I am using jquery 1.7.1.min and jquery-ui latest version.

Probably worth looking at the response you get from your WebMethod; use the developer console in your browser, usually activated by pressing the F12 key. — Tieson T.
– Tieson T., Commented Dec 20, 2014 at 7:51

Mairaj Ahmad · Accepted Answer · 2015-04-28 12:40:15Z

3

Change your success function like this

success: function (data) {
            response($.map(data.d, function (item) {
                return { value: item };
            }))

Data is contained in data.d property.

edited Apr 28, 2015 at 12:40

answered Dec 20, 2014 at 7:48

Mairaj Ahmad

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1 Comment

HEEN Over a year ago

@MairajAhmad: Nice one, need to learn Ajax from you. +1 for the clear explanation. of data.d property

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