zTreeObj.removeChildNodes.html 1.6 KB

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  1. <div class="apiDetail">
  2. <div>
  3. <h2><span>Function(parentNode)</span><span class="path">zTreeObj.</span>removeChildNodes</h2>
  4. <h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
  5. <div class="desc">
  6. <p></p>
  7. <div class="longdesc">
  8. <p>Remove a parent node's child nodes</p>
  9. <p class="highlight_red">1. After remove child nodes, the parent node will become a leaf node. Such as the need to maintain the parent node is still a parent node, set 'setting.data.keep.parent' attribute.</p>
  10. <p class="highlight_red">2. Do not use this method to empty the root. If you need to empty the root, you can initialization zTree, and set the initial nodes is null.</p>
  11. <p class="highlight_red">3. This method does not trigger any callback function.</p>
  12. <p class="highlight_red">Please use zTree object to executing the method.</p>
  13. </div>
  14. </div>
  15. <h3>Function Parameter Descriptions</h3>
  16. <div class="desc">
  17. <h4><b>parentNode</b><span>JSON</span></h4>
  18. <p>The parent node which need to clear its child nodes.</p>
  19. <p class="highlight_red">Please ensure that this data object is an internal node data object in zTree.</p>
  20. <h4 class="topLine"><b>Return </b><span>Array(JSON)</span></h4>
  21. <p>Return the parent node's child nodes which have been removed. If has no child nodes, return null.</p>
  22. </div>
  23. <h3>Examples of function</h3>
  24. <h4>1. Remove the first selected node's child nodes</h4>
  25. <pre xmlns=""><code>var treeObj = $.fn.zTree.getZTreeObj("tree");
  26. var nodes = treeObj.getSelectedNodes();
  27. if (nodes && nodes.length>0) {
  28. treeObj.removeChildNodes(nodes[0]);
  29. }
  30. </code></pre>
  31. </div>
  32. </div>