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Web Service Help

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answered on 23 Mar 2012, 06:09 PM

HTML Code

<html>

<head>

<title>DSR v2.0 Login</title>

<script src="js/jquery.min.js" type="text/javascript"></script>

<script src="js/kendo.web.min.js" type="text/javascript"></script>

<script src="content/shared/js/console.js" type="text/javascript"></script>

<link href="styles/kendo.common.min.css" rel="stylesheet" />

<link href="styles/kendo.default.min.css" rel="stylesheet" />

</head>

<body>

<script type="text/javascript">

$.ajax({

type: "POST",

contentType: "application/json; charset=utf-8",

url: "DSR.asmx/HelloWorld",

success: function (msg) {

alert(msg.d);

},

error: function (msg) {

alert(msg.d);

}

});

</script>

</body>

</html>

Web Service

Imports System.Web.Services

Imports System.Web.Services.Protocols

Imports System.ComponentModel

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

' <System.Web.Script.Services.ScriptService()> _

<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _

<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<ToolboxItem(False)> _

Public Class DSR

Inherits System.Web.Services.WebService

<WebMethod()> _

Public Function HelloWorld() As String

Return "Hello World"

End Function

End Class

alert box comes back with undefined and Not Hello World.

What am i missing..........

Thank you for the help

answered on 26 Mar 2012, 04:07 PM

i got it..
need to add

<WebMethod(EnableSession:=True)> _

<ScriptMethod(ResponseFormat:=ResponseFormat.Json)>

to your web service

and import

Imports System.Web.Script.Services

and make sure that you allow a service to be called from script.

From this:

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

'<System.Web.Script.Services.ScriptService()> _

<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _

<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<ToolboxItem(False)> _

to This

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

<System.Web.Script.Services.ScriptService()> _

<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _

<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<ToolboxItem(False)> _