jQuery插件zTree实现删除树子节点的方法示例

本文实例讲述了jQuery插件zTree实现删除树子节点的方法。分享给大家供大家参考，具体如下：

1、实现代码：

<!DOCTYPE html>
<html>
<head>
  <title>zTree实现基本树</title>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <link rel="stylesheet" type="text/css" href="zTree_v3/css/demo.css" rel="external nofollow" >
  <link rel="stylesheet" type="text/css" href="zTree_v3/css/zTreeStyle/zTreeStyle.css" rel="external nofollow" >
  <script type="text/javascript" src="zTree_v3/js/jquery-1.4.4.min.js"></script>
  <script type="text/javascript" src="zTree_v3/js/jquery.ztree.core.min.js"></script>
  <script type="text/javascript">
    <!--
    var setting = {
      data: {
        simpleData: {
          enable: true
        }
      }
    };
    var zNodes =[
      { id:1, pId:0, name:"湖北省", open:true},
      { id:11, pId:1, name:"武汉市", open:true},
      { id:111, pId:11, name:"汉口"},
      { id:112, pId:11, name:"汉阳"},
      { id:113, pId:11, name:"武昌"},
      { id:12, pId:1, name:"黄石市"},
      { id:121, pId:12, name:"黄石港区"},
      { id:122, pId:12, name:"西塞山区"},
      { id:123, pId:12, name:"下陆区"},
      { id:124, pId:12, name:"铁山区"},
      { id:13, pId:1, name:"黄冈市"},
      { id:131, pId:13, name:"黄州区"},
      { id:132, pId:13, name:"麻城市"},
      { id:133, pId:13, name:"武穴市"},
      { id:134, pId:13, name:"团风县"},
      { id:135, pId:13, name:"浠水县"},
      { id:136, pId:13, name:"罗田县"},
      { id:137, pId:13, name:"英山县"},
      { id:2, pId:0, name:"湖南省", open:true},
      { id:21, pId:2, name:"长沙市", open:true},
      { id:211, pId:21, name:"芙蓉区"},
      { id:212, pId:21, name:"天心区"},
      { id:213, pId:21, name:"岳麓区"},
      { id:214, pId:21, name:"开福区"},
      { id:22, pId:2, name:"株洲市"},
      { id:221, pId:22, name:"天元区"},
      { id:222, pId:22, name:"荷塘区"},
      { id:223, pId:22, name:"芦淞区"},
      { id:224, pId:22, name:"石峰区"},
      { id:23, pId:2, name:"湘潭市"},
      { id:231, pId:23, name:"雨湖区"},
      { id:232, pId:23, name:"岳塘区"},
      { id:233, pId:23, name:"湘乡市"},
      { id:234, pId:23, name:"韶山市"}
    ];
    $(document).ready(function(){
      $.fn.zTree.init($("#baseTree"), setting, zNodes);
    });
    /**
     * 删除选中的子节点
     */
    function removeNodes()
    {
      var treeObj = $.fn.zTree.getZTreeObj("baseTree");
      //选中节点
      var nodes = treeObj.getSelectedNodes();
      for (var i=0, l=nodes.length; i < l; i++)
      {
        //删除选中的子节点
        treeObj.removeChildNodes(nodes[i]);
      }
    }
    //-->
  </script>
 </head>
<body>
<div class="content_wrap">
  <div class="zTreeDemoBackground left" style="text-align: center;">
    <ul id="baseTree" class="ztree" style="height: 300px; width:200px; overflow-y: auto"></ul>
    <input type="button" id="btn" onclick="removeNodes()" value="删除子节点"/>
  </div>
</div>
</body>
</html>

2、实现效果图：

（1）初始化

（2）选择“武汉”，然后单击“删除子节点”

（3）选择“武汉市”，然后单击“删除子节点”，不能再删除子节点

3、源码说明

//删除选中的子节点
treeObj.removeChildNodes(nodes[i]);

附：zTree_v3插件点击此处本站下载。

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希望本文所述对大家jQuery程序设计有所帮助。