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POJavascript won't recognize web service
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  1. POJavascript won't recognize web service
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    copied!<p>I tried to create this by following the video at <a href="http://www.asp.net/learn/videos/video-7026.aspx" rel="nofollow noreferrer">http://www.asp.net/learn/videos/video-7026.aspx</a> where Joe Stagner created a simple web service that is called with Ajax. In the Button1_onclick() handler, javascript can't resolve the object "WebService1". Do you see s anything wrong? </p> <p>The exact error is "'WebService1' is undefined" in Button1_onclick().</p> <p>Note: I took out the head and body tags so the post would display ok. They are all there in my file.</p> <pre><code>&lt;script language="javascript" type="text/javascript"&gt; 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; } &lt;/script&gt; &lt;asp:ScriptManager ID="ScriptManager1" runat="server"&gt; &lt;Services&gt; &lt;asp:ServiceReference Path="~/WebService1.asmx" /&gt; &lt;/Services&gt; &lt;/asp:ScriptManager&gt; &lt;div&gt; &lt;input id="Text1" type="text" /&gt;&lt;br /&gt;&lt;br /&gt; &lt;input id="Button1" type="button" value="Click to test Ajax" onclick="return Button1_onclick()" /&gt;&lt;br /&gt; &lt;div id="CallResponse"&gt; &lt;/div&gt; &lt;/div&gt; &lt;/form&gt; </code></pre> <p>Here's the web service. Yes, I un-commented the line I was supposed to.</p> <pre> using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; namespace AjaxTest { /// /// Summary description for WebService1 /// [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; } } } </pre>
 

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