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<?php
/**
* TBaseDataList class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005-2015 PradoSoft
* @license http://www.pradosoft.com/license/
* @package System.Web.UI.WebControls
*/
/**
* Includes TDataBoundControl and TDataFieldAccessor classes
*/
Prado::using('System.Web.UI.WebControls.TDataBoundControl');
Prado::using('System.Util.TDataFieldAccessor');
/**
* TBaseDataList class
*
* TBaseDataList is the base class for data listing controls, including
* {@link TDataList} and {@link TDataGrid}.
*
* The key field in the data source is specified by {@link setKeyField KeyField},
* while {@link getKeyValues KeyValues} stores the key values of each record in
* a data listing control. You may use the list item index to obtain the corresponding
* database key value.
*
* TBaseDataList also implements a few properties used for presentation based
* on tabular layout. The {@link setCaption Caption}, whose alignment is
* specified via {@link setCaptionAlign CaptionAlign}, is rendered as the table caption.
* The table cellpadding and cellspacing are specified by
* {@link setCellPadding CellPadding} and {@link setCellSpacing CellSpacing}
* properties, respectively. The {@link setGridLines GridLines} specifies how
* the table should display its borders, and the horizontal alignment of the table
* content can be specified via {@link setHorizontalAlign HorizontalAlign}.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @package System.Web.UI.WebControls
* @since 3.0
*/
abstract class TBaseDataList extends TDataBoundControl
{
/**
* Creates a style object for the control.
* This method creates a {@link TTableStyle} to be used by the data list control.
* @return TTableStyle control style to be used
*/
protected function createStyle()
{
return new TTableStyle;
}
/**
* @return integer the cellspacing for the table layout. Defaults to -1, meaning not set.
*/
public function getCellSpacing()
{
if($this->getHasStyle())
return $this->getStyle()->getCellSpacing();
else
return -1;
}
/**
* @param integer the cellspacing for the table layout.
*/
public function setCellSpacing($value)
{
$this->getStyle()->setCellSpacing($value);
}
/**
* @return integer the cellpadding for the table layout. Defaults to -1, meaning not set.
*/
public function getCellPadding()
{
if($this->getHasStyle())
return $this->getStyle()->getCellPadding();
else
return -1;
}
/**
* @param integer the cellpadding for the table layout
*/
public function setCellPadding($value)
{
$this->getStyle()->setCellPadding($value);
}
/**
* @return THorizontalAlign the horizontal alignment of the table content. Defaults to THorizontalAlign::NotSet.
*/
public function getHorizontalAlign()
{
if($this->getHasStyle())
return $this->getStyle()->getHorizontalAlign();
else
return THorizontalAlign::NotSet;
}
/**
* @param THorizontalAlign the horizontal alignment of the table content.
*/
public function setHorizontalAlign($value)
{
$this->getStyle()->setHorizontalAlign($value);
}
/**
* @return TTableGridLines the grid line setting of the table layout. Defaults to TTableGridLines::None.
*/
public function getGridLines()
{
if($this->getHasStyle())
return $this->getStyle()->getGridLines();
else
return TTableGridLines::None;
}
/**
* Sets the grid line style of the table layout.
* @param TTableGridLines the grid line setting of the table
*/
public function setGridLines($value)
{
$this->getStyle()->setGridLines($value);
}
/**
* @return string the field of the data source that provides the keys of the list items.
*/
public function getDataKeyField()
{
return $this->getViewState('DataKeyField','');
}
/**
* @param string the field of the data source that provides the keys of the list items.
*/
public function setDataKeyField($value)
{
$this->setViewState('DataKeyField',$value,'');
}
/**
* @return TList the keys used in the data listing control.
*/
public function getDataKeys()
{
if(($dataKeys=$this->getViewState('DataKeys',null))===null)
{
$dataKeys=new TList;
$this->setViewState('DataKeys',$dataKeys,null);
}
return $dataKeys;
}
/**
* Returns the value of the data at the specified field.
* If data is an array, TMap or TList, the value will be returned at the index
* of the specified field. If the data is a component with a property named
* as the field name, the property value will be returned.
* Otherwise, an exception will be raised.
* @param mixed data item
* @param mixed field name
* @return mixed data value at the specified field
* @throws TInvalidDataValueException if the data is invalid
*/
protected function getDataFieldValue($data,$field)
{
return TDataFieldAccessor::getDataFieldValue($data,$field);
}
/**
* Raises OnSelectedIndexChanged event.
* This method is invoked when a different item is selected
* in a data listing control between posts to the server.
* @param mixed event parameter
*/
public function onSelectedIndexChanged($param)
{
$this->raiseEvent('OnSelectedIndexChanged',$this,$param);
}
}
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