jQuery EasyUI 树形菜单 - 创建异步树形菜单
为了创建异步的树形菜单(Tree),每一个树节点必须要有一个 'id' 属性,这个将提交回服务器去检索子节点数据。
创建树形菜单(Tree)
<ul id="tt" class="easyui-tree"
url="tree2_getdata.php">
</ul>
服务器端代码
$id = isset($_POST['id']) ? intval($_POST['id']) : 0;
include 'conn.php';
$result = array();
$rs = mysql_query("select * from nodes where parentId=$id");
while($row = mysql_fetch_array($rs)){
$node = array();
$node['id'] = $row['id'];
$node['text'] = $row['name'];
$node['state'] = has_child($row['id']) ? 'closed' : 'open';
array_push($result,$node);
}
echo json_encode($result);
function has_child($id){
$rs = mysql_query("select count(*) from nodes where parentId=$id");
$row = mysql_fetch_array($rs);
return $row[0] > 0 ? true : false;
}