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<?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 $Revision: $ $Date: $
* @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
* <b>DataField</b>. You can customize the display by setting <b>DataFormatString</b>.
*
* If <b>ReadOnly</b> is false, TBoundColumn will display cells in edit mode
* with textboxes. Otherwise, a static text is displayed.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
* @since 3.0
*/
class TBoundColumn extends TDataGridColumn
{
/**
* @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,'');
$this->onColumnChanged();
}
/**
* @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,'');
$this->onColumnChanged();
}
/**
* @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);
$this->onColumnChanged();
}
/**
* Initializes the specified cell to its initial values.
* This method overrides the parent implementation.
* It creates a textbox for item in edit mode and the column is not read-only.
* Otherwise it displays a static text.
* The caption of the button and the static text are retrieved
* from the datasource.
* @param TTableCell the cell to be initialized.
* @param integer the index to the Columns property that the cell resides in.
* @param string the type of cell (Header,Footer,Item,AlternatingItem,EditItem,SelectedItem)
*/
public function initializeCell($cell,$columnIndex,$itemType)
{
parent::initializeCell($cell,$columnIndex,$itemType);
switch($itemType)
{
case 'EditItem':
$control=$cell;
if(!$this->getReadOnly())
{
$textBox=Prado::createComponent('System.Web.UI.WebControls.TTextBox');
$cell->getControls()->add($textBox);
$control=$textBox;
}
if(($dataField=$this->getDataField())!=='')
$control->attachEventHandler('OnDataBinding',array($this,'dataBindColumn'));
break;
case 'Item':
case 'AlternatingItem':
case 'SelectedItem':
if(($dataField=$this->getDataField())!=='')
$cell->attachEventHandler('OnDataBinding',array($this,'dataBindColumn'));
break;
}
}
public function dataBindColumn($sender,$param)
{
$item=$sender->getNamingContainer();
$data=$item->getDataItem();
$formatString=$this->getDataFormatString();
if(($field=$this->getDataField())!=='')
$value=$this->formatDataValue($formatString,$this->getDataFieldValue($data,$field));
else
$value=$this->formatDataValue($formatString,$data);
if(($sender instanceof TTableCell) || ($sender instanceof TTextBox))
$sender->setText($value);
}
/**
* Formats the text value according to format string.
* This method is invoked when setting the text to a cell.
* This method can be overriden.
* @param mixed the data associated with the cell
* @return string the formatted result
*/
protected function formatDataValue($formatString,$value)
{
return $formatString===''?TPropertyValue::ensureString($value):sprintf($formatString,$value);
}
}
?>
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