From 21d72c4a80fe2937d0c4ddd20624b27adbcd989b Mon Sep 17 00:00:00 2001 From: lizi00164331
Get the treeNode's previous sibling node.
+Do not initialize or modify it, it is created by the zTree.
+JSON data object of the treeNode's previous sibling node
+If have not the previous node, return null.
+var treeObj = $.fn.zTree.getZTreeObj("tree");
+var sNodes = treeObj.getSelectedNodes();
+if (sNodes.length > 0) {
+ var node = sNodes[0].getPreNode();
+}
+
+