<?php /** * TContentPlaceHolder class file. * * @author Qiang Xue <qiang.xue@gmail.com> * @link http://www.pradosoft.com/ * @copyright Copyright © 2005 PradoSoft * @license http://www.pradosoft.com/license/ * @version $Revision: $ $Date: $ * @package System.Web.UI.WebControls */ /** * TContentPlaceHolder class * * TContentPlaceHolder reserves a place on a template where a {@link TContent} * control can inject itself and its children in. TContentPlaceHolder and {@link TContent} * together implement a decoration pattern for prado templated controls. * A template control (called content control) can specify a master control * whose template contains some TContentPlaceHolder controls. * {@link TContent} controls on the content control's template will replace the corresponding * {@link TContentPlaceHolder} controls on the master control's template. * This is called content injection. It is done by matching the IDs of * {@link TContent} and {@link TContentPlaceHolder} controls. * * @author Qiang Xue <qiang.xue@gmail.com> * @version $Revision: $ $Date: $ * @package System.Web.UI.WebControls * @since 3.0 */ class TContentPlaceHolder extends TControl { /** * This method is invoked after the control is instantiated on a template. * This overrides the parent implementation by registering the content placeholder * control to the template owner control. The placeholder control will NOT * be added to the potential parent control! * @param TControl potential parent of this control */ public function createdOnTemplate($parent) { if(($id=$this->getID())==='') throw new TConfigurationException('contentplaceholder_id_required'); $loc=$parent->getHasControls()?$parent->getControls()->getCount():0; $this->getTemplateControl()->registerContentPlaceHolder($id,$parent,$loc); $parent->unregisterObject($id); } } ?>