easyUI 创建异步Tree

@author YHC

创建异步的tree,每一个tree几点必须要有一个'id'属性 ,这个将提交回服务器去检索子节点数据.

查看 Demo

创建 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;  }  

下载 EasyUI 示例:

easyui-tree-demo.zip