Ok I'm stumped on this one.

I've got a ASMX web service up and running. I can browse to it (~/Webservice.asmx) and see the .NET generated page and test it out.. and it works fine.

I've got a page with a Script Manager with the webservice registered... and i can call it in javascript (Webservice.Method(...)) just fine.

However, I want to use this Webservice as part of a jQuery Autocomplete box. So I have use the url...? and the Webservice is never being called.

Here's the code.

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
[System.Web.Script.Services.ScriptService]
public class User : System.Web.Services.WebService {

    public User () {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }
    [WebMethod]
    public string Autocomplete(string q)
    {


        StringBuilder sb = new StringBuilder();
        //doStuff
        return sb.ToString();
    }

web.config

<system.web>
    <webServices>
      <protocols>
        <add name="HttpGet"/>
        <add name="HttpPost"/>
      </protocols>
    </webServices>

And the HTML

$(document).ready(function() {


            User.Autocomplete("rr", function(data) { alert(data); });//this works

            ("#<%=txtUserNbr.ClientID %>").autocomplete("/User.asmx/Autocomplete"); //doesn't work
            $.ajax({

                url: "/User.asmx/Autocomplete",
                success: function() { alert(data); },
                error: function(e) { alert(e); }
            }); //just to test... calls "error" function
        });