Three Ways to Consume Web Services with AJAX: ASP Alliance

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Three Ways to Consume Web Services with AJAX

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by Xianzhong Zhu
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Article Contents:

Requirements

· Windows XP Professional (with IIS installed)

· Visual Studio 2005

· SOAP-based JavaScript library titled soapclient.js

· AjaxPro.NET Framework

· Microsoft ASP.NET AJAX Framework

To follow along with the examples, you need to download the source files accompanying this article. And also, for brevity, we omit representing the install of each framework used below since each is shipped with a straightforward introduction.

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User Comments

Title: Sr. Web Developer
Name: Nelson Xu
Date: 2008-09-04 11:20:30 AM
Comment:
Hi Xianzhong,
I reall enjoy your article and code sample.
The reason that "Undefined" appears is because you have () for OnSuccess when you call Web service.

SumServiceSpace.SumService.GetSum(
eval(form1.TextBoxA.value),
eval(form1.TextBoxB.value),
OnSuccess());

Message will go away if you remove () after OnSuccess.