jQuery EasyUI 樹(shù)形菜單 – 樹(shù)形網(wǎng)格動(dòng)態(tài)加載

jQuery EasyUI 樹(shù)形菜單 - 樹(shù)形網(wǎng)格動(dòng)態(tài)加載

本節(jié)介紹jQuery EasyUI樹(shù)形網(wǎng)格（TreeGrid）如何動(dòng)態(tài)的加載。

動(dòng)態(tài)加載樹(shù)形網(wǎng)格有助于從服務(wù)器上加載部分的行數(shù)據(jù)，避免加載大型數(shù)據(jù)的長(zhǎng)時(shí)間等待。

下述的示例將向您展示如何創(chuàng)建帶有動(dòng)態(tài)加載特性的樹(shù)形網(wǎng)格。

創(chuàng)建樹(shù)形網(wǎng)格（TreeGrid）

	<table title="Products" class="easyui-treegrid" style="width:700px;height:300px" url="treegrid3_getdata.php" 			
            rownumbers="true" idField="id" treeField="name">
		<thead>
			<tr>
				<th field="name" width="250">Name</th>
				<th field="quantity" width="100" align="right">Quantity</th>
				<th field="price" width="150" align="right" formatter="formatDollar">Price</th>
				<th field="total" width="150" align="right" formatter="formatDollar">Total</th>
			</tr>
		</thead>
	</table>

服務(wù)器端代碼

treegrid3_getdata.php

$id = isset($_POST['id']) ? intval($_POST['id']) : 0;

include 'conn.php';
$result = array();
$rs = mysql_query("select * from products where parentId=$id");
while($row = mysql_fetch_array($rs)){
	$row['state'] = has_child($row['id']) ? 'closed' : 'open';
	$row['total'] = $row['price']*$row['quantity'];
	array_push($result, $row);
}

echo json_encode($result);

function has_child($id){
	$rs = mysql_query("select count(*) from products where parentId=$id");
	$row = mysql_fetch_array($rs);
	return $row[0] > 0 ? true : false;
}

下載 jQuery EasyUI 實(shí)例

jeasyui-tree-treegrid3.zip