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<?php
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/**
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* TRadioButtonList class file
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.pradosoft.com/
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* @copyright Copyright © 2005-2008 PradoSoft
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* @license http://www.pradosoft.com/license/
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* @version $Id: TRadioButtonList.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.WebControls
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*/
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/**
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* Includes TRadioButton class
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*/
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Prado::using('System.Web.UI.WebControls.TRadioButton');
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/**
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* Includes TCheckBoxList class
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*/
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Prado::using('System.Web.UI.WebControls.TCheckBoxList');
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/**
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* TRadioButtonList class
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*
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* TRadioButtonList displays a list of radiobuttons on a Web page.
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*
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* TRadioButtonList inherits all properties and events of {@link TCheckBoxList}.
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* Each TRadioButtonList displays one group of radiobuttons, i.e., at most
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* one radiobutton can be selected at a time.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @version $Id: TRadioButtonList.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.WebControls
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* @since 3.0
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*/
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class TRadioButtonList extends TCheckBoxList
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{
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/**
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* @return boolean whether this control supports multiple selection. Always false for radiobutton list.
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*/
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protected function getIsMultiSelect()
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{
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return false;
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}
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/**
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* Creates a control used for repetition (used as a template).
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* @return TControl the control to be repeated
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*/
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protected function createRepeatedControl()
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{
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return new TRadioButton;
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}
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/**
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* Loads user input data.
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* This method is primarly used by framework developers.
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* @param string the key that can be used to retrieve data from the input data collection
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* @param array the input data collection
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* @return boolean whether the data of the control has been changed
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*/
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public function loadPostData($key,$values)
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{
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$value=isset($values[$key])?$values[$key]:'';
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$oldSelection=$this->getSelectedIndex();
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$this->ensureDataBound();
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foreach($this->getItems() as $index=>$item)
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{
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if($item->getEnabled() && $item->getValue()===$value)
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{
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if($index===$oldSelection)
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return false;
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else
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{
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$this->setSelectedIndex($index);
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return true;
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}
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}
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}
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return false;
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}
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/**
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* @throws TNotSupportedException if this method is invoked
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*/
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public function setSelectedIndices($indices)
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{
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throw new TNotSupportedException('radiobuttonlist_selectedindices_unsupported');
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}
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/**
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* Gets the name of the javascript class responsible for performing postback for this control.
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* This method overrides the parent implementation.
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* @return string the javascript class name
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*/
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protected function getClientClassName()
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{
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return 'Prado.WebUI.TRadioButtonList';
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}
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}
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