Undefined Error on asp.net web-service call from external HTML page
Question
I am net to asp.net and web-services. I am developing HTML 5 application which calls asp.net web-service. I have published my asp.net web service on IIS7 and it works fine, but when I am calling web service through external HTML 5 JQuery it gives me undefined error.
Following is my web service code:
using System;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
[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 Service : System.Web.Services.WebService
{
public Service () {
//Uncomment the following line if using designed components
//InitializeComponent();
}
[WebMethod]
public string HelloWorld() {
return "Byeeee";
}
}
My Jquery Code Is:
// JavaScript Document
$(document).ready(function() {
$.ajax({
type: "POST",
url: "http://localhost/mywebserice/Service.asmx?op=HelloWorld",
Content-Type: 'application/x-www-form-urlencoded',
dataType: "xml",
data: '{}',
success: function(){
alert("Success");
},
error: function(){
alert("Error");
}
});
});
My HTML5 Code IS:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script src="jquery-1.10.2.js"></script>
<script type="text/javascript" src="newJS.js"></script>
</head>
<body>
</body>
</html>
Can any one please help me to solve this issue?
1 answers
solution1
0 2013-12-16 10:48:51
Your jQuery ajax setting attributes are wrong.
firstly, there is no such attribute as Content-Type . Use contentType .
secondly, you have specified wrong structure of your url. Structure of the ajax url should be like this:
domain/ServiceName.asmx/MethodName?anyParamters=value
you can also specify relative url, if the page from which you are calling the webservice and the webservice belong to the same domain i,e,
~/ServiceName.asmx/MethodName?anyParamters=value
change your ajax function to this:
$.ajax({
type: "POST",
url: "http://localhost/mywebserice/Service.asmx/HelloWorld",
contentType: 'application/x-www-form-urlencoded',
dataType: "xml",
data: {},
success: function (msg) {
alert($(msg).text());
//console.log($(msg).text());
},
error: function(xhr, status, error){
console.log("Error");
}
});
you can read about all the possible attributes of jQuery ajax here . Give it a go
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