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<?php
Prado::using('Application.pages.Controls.Samples.TDataGrid.Sample1');
class Sample6 extends Sample1
{
/**
* Returns a subset of data.
* In MySQL database, this can be replaced by LIMIT clause
* in an SQL select statement.
* @param integer the starting index of the row
* @param integer number of rows to be returned
* @return array subset of data
*/
protected function getDataRows($offset,$rows)
{
$data=$this->getData();
$page=array();
for($i=0;$i<$rows;++$i)
{
if($offset+$i<$this->getRowCount())
$page[$i]=$data[$offset+$i];
}
return $page;
}
/**
* Returns total number of data rows.
* In real DB applications, this may be replaced by an SQL select
* query with count().
* @return integer total number of data rows
*/
protected function getRowCount()
{
return 19;
}
public function onLoad($param)
{
if(!$this->IsPostBack)
{
$this->DataGrid->DataSource=$this->getDataRows(0,$this->DataGrid->PageSize);
$this->DataGrid->dataBind();
}
}
public function changePage($sender,$param)
{
$this->DataGrid->CurrentPageIndex=$param->NewPageIndex;
$offset=$param->NewPageIndex*$this->DataGrid->PageSize;
$this->DataGrid->DataSource=$this->getDataRows($offset,$this->DataGrid->PageSize);
$this->DataGrid->dataBind();
}
}
?>
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