<com:TContent ID="body" > <h1 id="170025">TActivePanel</h1> <com:DocLink ClassPath="System.Web.UI.ActiveControls.TActivePanel" /> <p class="block-content"> <tt>TActivePanel</tt> is the <tt>TPanel</tt> active control counterpart. <tt>TActivePanel</tt> allows the client-side panel contents to be updated during a callback response using the <tt>render</tt> method. Example: Assume $param is an instance of <tt>TCallbackEventParameter</tt> attached to the <tt>OnCallback</tt> event of a <tt>TCallback</tt> with ID "callback1", and "panel1" is the ID of a <tt>TActivePanel</tt>. <com:TTextHighlighter Language="text" CssClass="source block-content"> function callback1_requested($sender, $param) { $this->panel1->render($param->getNewWriter()); } </com:TTextHighlighter> <com:RunBar PagePath="ActiveControls.Samples.TActivePanel.Home" /> </com:TContent>