Question

Ajax to play sound file...

Asked by: kalliopi

Hi,

I'm using the Telerik AJAX Manager to ajaxify a page, and I want to have a sound played at some point.  I have been unable to consistently get a postback coming from an ajax request to play a sound file.  Any suggestions?

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Asked On
2008-04-21 at 09:53:37ID23340192
Tags

ajax

,

sound

,

javascript

,

c#

Topics

Microsoft Visual C#.Net

,

JavaScript

,

.NET Framework 3.x versions

Participating Experts
1
Points
500
Comments
3

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Answers

 

by: wilq32Posted on 2008-04-27 at 02:05:22ID: 21448559

Maybe a little more details? Are you playing static sound? Or sound file name is send via AJAX? OR maybe whole sound is send via AJAX?? Does playing sound without AJAX work properly?

 

by: kalliopiPosted on 2008-04-27 at 10:51:56ID: 21449781

I'm up for anything.  I just need to be able to reliably play a sound (on command) from within an ajax postback event.  So - ajax panel, button inside the panel, click the button, hear the sound.  That's about it.

I've tried a bunch of different things - but nothing that I've tried has worked reliably.  Looking for a solid - works every time kind of solution...

Thoughts?

 

by: wilq32Posted on 2008-04-27 at 13:53:02ID: 21450343

For playing sound I would advice to choose one of those method:

http://www.phon.ucl.ac.uk/home/mark/audio/play.htm


To play a sound after getting back information from server just read a little about AJAX:

http://en.wikipedia.org/wiki/XMLHttpRequest


Its simple:

if( !window.XMLHttpRequest ) XMLHttpRequest = function()
{
  try{ return new ActiveXObject("Msxml2.XMLHTTP.6.0") }catch(e){}
  try{ return new ActiveXObject("Msxml2.XMLHTTP.3.0") }catch(e){}
  try{ return new ActiveXObject("Msxml2.XMLHTTP") }catch(e){}
  try{ return new ActiveXObject("Microsoft.XMLHTTP") }catch(e){}
  throw new Error("Could not find an XMLHttpRequest alternative.")
};



function ajax(url, vars)
{
  var request = window.XMLHttpRequest ?
      new XMLHttpRequest() : new ActiveXObject("MSXML2.XMLHTTP.3.0");
  request.open("POST", url, true);
  request.setRequestHeader("Content-Type",
                           "application/x-www-form-urlencoded");
 
  request.onreadystatechange = function()
  {
    if (request.readyState == 4 && request.status == 200)
    {
      if (request.responseText)
      {
            switch (request.responseText)  // For example if you return  "OK" or "FAIL"
         {
                case "OK":             playSound () ;        // HERE are sound playing method that you chose
                       break;
                case "FAIL":              alert('FAIL - bad validation');
                        break;

          }

               

      }
    }
  };
  request.send(vars);
}

20120131-EE-VQP-002

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