From 045b8b2a21873b8747fde66890b094f63c095c93 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Sun, 5 Feb 2006 06:35:32 +0000
Subject: Added a demo of TDataGrid showing custom paging.

---
 .../pages/Controls/Samples/TDataGrid/Sample6.php   | 56 ++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 demos/quickstart/protected/pages/Controls/Samples/TDataGrid/Sample6.php

(limited to 'demos/quickstart/protected/pages/Controls/Samples/TDataGrid/Sample6.php')

diff --git a/demos/quickstart/protected/pages/Controls/Samples/TDataGrid/Sample6.php b/demos/quickstart/protected/pages/Controls/Samples/TDataGrid/Sample6.php
new file mode 100644
index 00000000..90e3f7fe
--- /dev/null
+++ b/demos/quickstart/protected/pages/Controls/Samples/TDataGrid/Sample6.php
@@ -0,0 +1,56 @@
+<?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();
+	}
+}
+
+?>
\ No newline at end of file
-- 
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