From 56466c36f4bbe5a1fee8d77642dc57b2366164e3 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Tue, 27 Jun 2006 01:31:25 +0000
Subject: Added tutorial and test cases for TPager.

---
 .../pages/Controls/Samples/TPager/Sample1.php      | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 demos/quickstart/protected/pages/Controls/Samples/TPager/Sample1.php

(limited to 'demos/quickstart/protected/pages/Controls/Samples/TPager/Sample1.php')

diff --git a/demos/quickstart/protected/pages/Controls/Samples/TPager/Sample1.php b/demos/quickstart/protected/pages/Controls/Samples/TPager/Sample1.php
new file mode 100644
index 00000000..e5446f60
--- /dev/null
+++ b/demos/quickstart/protected/pages/Controls/Samples/TPager/Sample1.php
@@ -0,0 +1,82 @@
+<?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();
+	}
+}
+
+?>
\ No newline at end of file
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