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Private static readonly object ReflectionLock = new object();
Lock (ReflectionLock)
{
Type scriptManagerType =
Type.GetType(
"System.Web.UI.ScriptManager, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35",
false);
if (scriptManagerType != null)
// ASP.NET AJAX is installed.
else
// ASP.NET AJAX is not installed.

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ScriptManager sm = ScriptManager.GetCurrent(Page)
if (sm == null)
{
// ASP.NET AJAX functionality is not enabled for the page.
}
else
{
// AJAX functionality is enabled for the page.
}

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      <add verb="*" path="*.rpx" type="DataDynamics.ActiveReports.Web.Handlers.RpxHandler, ActiveReports.Web, Version=5.1.0.158, Culture=neutral, PublicKeyToken=cc4967777c49a3ff" />


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# app\controllers\examples_controller.rb
ruby ´úÂë
 
class ExamplesController < ApplicationController  
  
  def ajax_select  
    @items = %w{AA BB}  
  end   ......

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<html>
<head>
<script type="text/javascript" src="zxml.src.js"></script>
<script type="text/javascript">
function start() {
var oXmlHttp = zXmlHttp.createRequest();
oXmlHttp.open("get", "info11.txt", true);
oXmlHttp.onreadystatecha ......

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