portal-common/src/main/webapp/common/thirdparty/zTree/api/cn/setting.callback.beforeClick.html

   1 <div class="apiDetail">\r
   2 <div>\r
   3         <h2><span>Function(treeId, treeNode, clickFlag)</span><span class="path">setting.callback.</span>beforeClick</h2>\r
   4         <h3>概述<span class="h3_info">[ 依赖 <span class="highlight_green">jquery.ztree.core</span> 核心 js ]</span></h3>\r
   5         <div class="desc">\r
   6                 <p></p>\r
   7                 <div class="longdesc">\r
   8                         <p>用于捕获单击节点之前的事件回调函数，并且根据返回值确定是否允许单击操作</p>\r
   9                         <p>默认值：null</p>\r
  10                 </div>\r
  11         </div>\r
  12         <h3>Function 参数说明</h3>\r
  13         <div class="desc">\r
  14         <h4><b>treeId</b><span>String</span></h4>\r
  15         <p>对应 zTree 的 <b class="highlight_red">treeId</b>，便于用户操控</p>\r
  16         <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>\r
  17         <p>被单击的节点 JSON 数据对象</p>\r
  18         <h4 class="topLine"><b>clickFlag</b><span>Number</span></h4>\r
  19         <p>节点被点击后的选中操作类型，详细看下表</p>\r
  20         <table width="100%" border="0" cellspacing="1" cellpadding="0">\r
  21                 <thead><tr><td>clickFlag</td><td title="是否允许多点选中">selectedMulti</td><td title="是否按下 Ctrl 或 Cmd 键">autoCancelSelected<br/>&&<br/>event.ctrlKey / metaKey</td><td title="节点当前选择状态">isSelected</td><td>选中操作</td></tr></thead>\r
  22                 <tbody>\r
  23                         <tr><td>1</td><td>true</td><td>false</td><td>false</td><td>普通选中</td></tr>\r
  24                         <tr><td>1</td><td>true</td><td>false</td><td>true</td><td>普通选中</td></tr>\r
  25                         <tr><td>2</td><td>true</td><td>true</td><td>false</td><td>追加选中</td></tr>\r
  26                         <tr><td>0</td><td>true</td><td>true</td><td>true</td><td>取消选中</td></tr>\r
  27                         <tr><td>1</td><td>false</td><td>false</td><td>false</td><td>普通选中</td></tr>\r
  28                         <tr><td>1</td><td>false</td><td>false</td><td>true</td><td>普通选中</td></tr>\r
  29                         <tr><td>1</td><td>false</td><td>true</td><td>false</td><td>普通选中</td></tr>\r
  30                         <tr><td>0</td><td>false</td><td>true</td><td>true</td><td>取消选中</td></tr>\r
  31                 </tbody>\r
  32         </table>\r
  33         <h4 class="topLine"><b>返回值</b><span>Boolean</span></h4>\r
  34         <p>返回值是 true / false</p>\r
  35         <p class="highlight_red">如果返回 false，zTree 将不会选中节点，也无法触发 onClick 事件回调函数</p>\r
  36         </div>\r
  37         <h3>setting & function 举例</h3>\r
  38         <h4>1. 禁止节点被选中</h4>\r
  39         <pre xmlns=""><code>function zTreeBeforeClick(treeId, treeNode, clickFlag) {\r
  40     return (treeNode.id !== 1);\r
  41 };\r
  42 var setting = {\r
  43         callback: {\r
  44                 beforeClick: zTreeBeforeClick\r
  45         }\r
  46 };\r
  47 ......</code></pre>\r
  48 </div>\r
  49 </div>