/Controls/Samples/TPager/Sample1.php
<?php
class Sample1 extends TPage
{
/**
* Returns total number of data items.
* In DB-driven applications, this typically requires
* execution of an SQL statement with COUNT function.
* Here we simply return a constant number.
*/
protected function getDataItemCount()
{
return 19;
}
/**
* Fetches a page of data.
* In DB-driven applications, this can be achieved by executing
* an SQL query with LIMIT clause.
*/
protected function getData($offset,$limit)
{
$data=array(
array('id'=>'ITN001','name'=>'Motherboard','quantity'=>1,'price'=>100.00,'imported'=>true),
array('id'=>'ITN002','name'=>'CPU','quantity'=>1,'price'=>150.00,'imported'=>true),
array('id'=>'ITN003','name'=>'Harddrive','quantity'=>2,'price'=>80.00,'imported'=>true),
array('id'=>'ITN004','name'=>'Sound card','quantity'=>1,'price'=>40.00,'imported'=>false),
array('id'=>'ITN005','name'=>'Video card','quantity'=>1,'price'=>150.00,'imported'=>true),
array('id'=>'ITN006','name'=>'Keyboard','quantity'=>1,'price'=>20.00,'imported'=>false),
array('id'=>'ITN007','name'=>'Monitor','quantity'=>2,'price'=>300.00,'imported'=>true),
array('id'=>'ITN008','name'=>'CDRW drive','quantity'=>1,'price'=>40.00,'imported'=>true),
array('id'=>'ITN009','name'=>'Cooling fan','quantity'=>2,'price'=>10.00,'imported'=>false),
array('id'=>'ITN010','name'=>'Video camera','quantity'=>20,'price'=>30.00,'imported'=>true),
array('id'=>'ITN011','name'=>'Card reader','quantity'=>10,'price'=>24.00,'imported'=>true),
array('id'=>'ITN012','name'=>'Floppy drive','quantity'=>50,'price'=>12.00,'imported'=>false),
array('id'=>'ITN013','name'=>'CD drive','quantity'=>25,'price'=>20.00,'imported'=>true),
array('id'=>'ITN014','name'=>'DVD drive','quantity'=>15,'price'=>80.00,'imported'=>true),
array('id'=>'ITN015','name'=>'Mouse pad','quantity'=>50,'price'=>5.00,'imported'=>false),
array('id'=>'ITN016','name'=>'Network cable','quantity'=>40,'price'=>8.00,'imported'=>true),
array('id'=>'ITN017','name'=>'Case','quantity'=>8,'price'=>65.00,'imported'=>false),
array('id'=>'ITN018','name'=>'Surge protector','quantity'=>45,'price'=>15.00,'imported'=>false),
array('id'=>'ITN019','name'=>'Speaker','quantity'=>35,'price'=>65.00,'imported'=>false),
);
return array_slice($data,$offset,$limit);
}
/**
* Determines which page of data to be displayed and
* populates the datalist with the fetched data.
*/
protected function populateData()
{
$offset=$this->DataList->CurrentPageIndex*$this->DataList->PageSize;
$limit=$this->DataList->PageSize;
if($offset+$limit>$this->DataList->VirtualItemCount)
$limit=$this->DataList->VirtualItemCount-$offset;
$data=$this->getData($offset,$limit);
$this->DataList->DataSource=$data;
$this->DataList->dataBind();
}
public function onLoad($param)
{
parent::onLoad($param);
if(!$this->IsPostBack)
{
$this->DataList->VirtualItemCount=$this->DataItemCount;
$this->populateData();
}
}
/**
* Event handler to the OnPageIndexChanged event of pagers.
*/
public function pageChanged($sender,$param)
{
$this->DataList->CurrentPageIndex=$param->NewPageIndex;
$this->populateData();
}
}