CODEWITHSUNDEEP
asp.netvb.netweb-servicesasynchronous
IMAbev
IMAbev

Reputation: 188

Need a simple ASP.NET asynchronous callback to web service

I have been trying to figure this our for far too long and I cannot get my head around it. Every example I have seen seems to be far more complex that I need.

I have a web service in my project (.asmx). I want to call it very simply from a button on a webpage.

  1. Click
  2. Run service asynchronously
  3. return control back to webpage (web service running in background)

Can someone show me a simple example in vb, or even something they think will help me better understand what I need to do?

Upvotes: 0

Views: 1280

Answers (1)

John Pick
John Pick

Reputation: 5650

Using the jQuery library (not the only option, but a darn good one) vastly simplifies this problem. Here's an example of what to put in your button's onclick event:

$.post('MyWebService.asmx', '<?xml version="1.0" encoding="utf-8"?>
  <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    <soap:Body>
      <Contact xmlns="http://mywebsite.com/">
        <firstName>string</firstName>
        <lastName>string</lastName>
      </Contact>
    </soap:Body>
  </soap:Envelope>');

More info here: http://api.jquery.com/jQuery.post/

Upvotes: 1

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