portal-common/src/main/webapp/common/thirdparty/zTree/api/en/setting.callback.beforeDragOpen.html

   1 <div class="apiDetail">\r
   2 <div>\r
   3         <h2><span>Function(treeId, treeNode)</span><span class="path">setting.callback.</span>beforeDragOpen</h2>\r
   4         <h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.exedit</span> js ]</span></h3>\r
   5         <div class="desc">\r
   6                 <p></p>\r
   7                 <div class="longdesc">\r
   8                         <p>Used to capture the event when drag node to collapsed parent node, zTree based on return value to determine whether to auto expand parent node.</p>\r
   9                         <p>Default: null</p>\r
  10                 </div>\r
  11         </div>\r
  12         <h3>Function Parameter Descriptions</h3>\r
  13         <div class="desc">\r
  14         <h4><b>treeId</b><span>String</span></h4>\r
  15         <p>zTree unique identifier: <b class="highlight_red">treeId</b>, the tree is what the treeNode(parent node) is belong to, easy for users to control.</p>\r
  16         <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>\r
  17         <p>JSON data object of the parent node which will be auto expanded</p>\r
  18         <h4 class="topLine"><b>Return </b><span>Boolean</span></h4>\r
  19         <p>return true or false</p>\r
  20         <p class="highlight_red">If return false, zTree will not auto expand parent node.</p>\r
  21         </div>\r
  22         <h3>Examples of setting & function</h3>\r
  23         <h4>1. disable to auto expand parent node.</h4>\r
  24         <pre xmlns=""><code>function zTreeBeforeDragOpen(treeId, treeNode) {\r
  25     return false;\r
  26 };\r
  27 var setting = {\r
  28         edit: {\r
  29                 enable: true\r
  30         },\r
  31         callback: {\r
  32                 beforeDragOpen: zTreeBeforeDragOpen\r
  33         }\r
  34 };\r
  35 ......</code></pre>\r
  36 </div>\r
  37 </div>