<?php /** * TBoundColumn 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 $Id$ * @package System.Web.UI.WebControls */ /** * TDataGridColumn class file */ Prado::using('System.Web.UI.WebControls.TDataGridColumn'); /** * TBoundColumn class * * TBoundColumn represents a column that is bound to a field in a data source. * The cells in the column will be displayed using the data indexed by * {@link setDataField DataField}. You can customize the display by * setting {@link setDataFormatString DataFormatString}. * * If {@link setReadOnly ReadOnly} is false, TBoundColumn will display cells in edit mode * with textboxes. Otherwise, a static text is displayed. * * When a datagrid row is in edit mode, the textbox control in the TBoundColumn * can be accessed by one of the following two methods: * <code> * $datagridItem->BoundColumnID->TextBox * $datagridItem->BoundColumnID->Controls[0] * </code> * The second method is possible because the textbox control created within the * datagrid cell is the first child. * * Since v3.1.0, TBoundColumn has introduced two new properties {@link setItemRenderer ItemRenderer} * and {@link setEditItemRenderer EditItemRenderer} which can be used to specify * the layout of the datagrid cells in browsing and editing mode. * A renderer refers to a control class that is to be instantiated as a control. * For more details, see {@link TRepeater} and {@link TDataList}. * * @author Qiang Xue <qiang.xue@gmail.com> * @version $Id$ * @package System.Web.UI.WebControls * @since 3.0 */ class TBoundColumn extends TDataGridColumn { /** * @return string the class name for the item cell renderer. Defaults to empty, meaning not set. * @since 3.1.0 */ public function getItemRenderer() { return $this->getViewState('ItemRenderer',''); } /** * Sets the item cell renderer class. * * If not empty, the class will be used to instantiate as a child control in the item cells of the column. * * If the class implements {@link IDataRenderer}, the <b>Data</b> property * will be set as the data associated with the datagrid cell during databinding. * The data can be either the whole data row or a field of the row if * {@link getDataField DataField} is not empty. If {@link getDataFormatString DataFormatString} * is not empty, the data will be formatted first before passing to the renderer. * * @param string the renderer class name in namespace format. * @since 3.1.0 */ public function setItemRenderer($value) { $this->setViewState('ItemRenderer',$value,''); } /** * @return string the class name for the edit item cell renderer. Defaults to empty, meaning not set. * @since 3.1.0 */ public function getEditItemRenderer() { return $this->getViewState('EditItemRenderer',''); } /** * Sets the edit item cell renderer class. * * If not empty, the class will be used to instantiate as a child control in the item cell that is in edit mode. * * If the class implements {@link IDataRenderer}, the <b>Data</b> property * will be set as the data associated with the datagrid cell during databinding. * The data can be either the whole data row or a field of the row if * {@link getDataField DataField} is not empty. If {@link getDataFormatString DataFormatString} * is not empty, the data will be formatted first before passing to the renderer. * * @param string the renderer class name in namespace format. * @since 3.1.0 */ public function setEditItemRenderer($value) { $this->setViewState('EditItemRenderer',$value,''); } /** * @return string the field name from the data source to bind to the column */ public function getDataField() { return $this->getViewState('DataField',''); } /** * @param string the field name from the data source to bind to the column */ public function setDataField($value) { $this->setViewState('DataField',$value,''); } /** * @return string the formatting string used to control how the bound data will be displayed. */ public function getDataFormatString() { return $this->getViewState('DataFormatString',''); } /** * @param string the formatting string used to control how the bound data will be displayed. */ public function setDataFormatString($value) { $this->setViewState('DataFormatString',$value,''); } /** * @return boolean whether the items in the column can be edited. Defaults to false. */ public function getReadOnly() { return $this->getViewState('ReadOnly',false); } /** * @param boolean whether the items in the column can be edited */ public function setReadOnly($value) { $this->setViewState('ReadOnly',TPropertyValue::ensureBoolean($value),false); } /** * Initializes the specified cell to its initial values. * This method overrides the parent implementation. * It creates a textbox for item in edit mode and the column is not read-only. * Otherwise it displays a static text. * The caption of the button and the static text are retrieved * from the datasource. * @param TTableCell the cell to be initialized. * @param integer the index to the Columns property that the cell resides in. * @param string the type of cell (Header,Footer,Item,AlternatingItem,EditItem,SelectedItem) */ public function initializeCell($cell,$columnIndex,$itemType) { $item=$cell->getParent(); switch($itemType) { case TListItemType::Item: case TListItemType::AlternatingItem: case TListItemType::SelectedItem: if(($classPath=$this->getItemRenderer())!=='') { $control=Prado::createComponent($classPath); if($control instanceof IItemDataRenderer) { $control->setItemIndex($item->getItemIndex()); $control->setItemType($item->getItemType()); } $cell->getControls()->add($control); } else $control=$cell; $control->attachEventHandler('OnDataBinding',array($this,'dataBindColumn')); break; case TListItemType::EditItem: if(!$this->getReadOnly()) { if(($classPath=$this->getItemRenderer())!=='') { $control=Prado::createComponent($classPath); if($control instanceof IItemDataRenderer) { $control->setItemIndex($item->getItemIndex()); $control->setItemType($item->getItemType()); } $cell->getControls()->add($control); } else { $control=Prado::createComponent('System.Web.UI.WebControls.TTextBox'); $cell->getControls()->add($control); $cell->registerObject('TextBox',$control); } } else $control=$cell; $control->attachEventHandler('OnDataBinding',array($this,'dataBindColumn')); break; default: parent::initializeCell($cell,$columnIndex,$itemType); break; } } /** * Databinds a cell in the column. * This method is invoked when datagrid performs databinding. * It populates the content of the cell with the relevant data from data source. */ public function dataBindColumn($sender,$param) { $item=$sender->getNamingContainer(); $data=$item->getData(); $formatString=$this->getDataFormatString(); if(($field=$this->getDataField())!=='') $value=$this->formatDataValue($formatString,$this->getDataFieldValue($data,$field)); else $value=$this->formatDataValue($formatString,$data); $sender->setData($value); } } ?>