Re: Web service not found in javascript

mrmercury — Fri, 03 Jul 2009 12:13:54 GMT

You need to use the WebMethod full name, since you have a namespace it should be: AjaxTest.WebService1.HelloWorld($get(“Text1”).value, OnComplete, OnError);

Note $get(“Text1”) is the same as document.getElementById(“Text1”)

Web service not found in javascript

BrianK9 — Fri, 03 Jul 2009 02:43:36 GMT

Hi. I tried to create this by following the video at http://www.asp.net/learn/videos/video-7026.aspx where Joe Stagner created a simple web service that is called by Ajax. In the Button1_onclick() handler, javascript can't resolve the object "WebService1". Please have a look and see if there is anything wrong.

The exact error is "'WebService1' is undefined" in Button1_onclick().

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="AjaxTest._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title></title>

    <script language="javascript" type="text/javascript">
// <!CDATA[

        function Button1_onclick() {
            ret = WebService1.HelloWorld(document.getElementById("Text1").value, OnComplete, OnError);
        }

        function OnError() {
            alert("An error occurred");
        }
        function OnComplete(arg) {
            document.getElementById("CallResponse").innerHTML = arg;
        }

// ]]>
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    <Services>
        <asp:ServiceReference Path="~/WebService1.asmx" />
    </Services>
    </asp:ScriptManager>
    <div>
        <input id="Text1" type="text" /><br /><br />
        <input id="Button1" type="button" value="Click to test Ajax" onclick="return Button1_onclick()" /><br />
        <div id="CallResponse">
        </div>
    </div>
    </form>
</body>
</html>

Here's the web service. Yes, I un-commented the line I was supposed to.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;

namespace AjaxTest
{
    /// <summary>
    /// Summary description for WebService1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 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 WebService1 : System.Web.Services.WebService
    {

        [WebMethod]
        public string HelloWorld(string s)
        {
            return "Hello " + s;
        }
    }
}

ASP.NET AJAX Networking and Web Services

Re: Web service not found in javascript

Web service not found in javascript