Dhtmlx tree api undefined

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I am trying to use some api http://ift.tt/17uHwz2 to save the state of a tree in my project but every time is undefined :

undefined is not a function

This is the code:

tree_1.setImagePath('./codebase/thirdparty/dhtmlxtree/imgs/dhxtree_'+"skyblue"+'/');
tree_1.enableItemEditor(1);
tree_1.enableCheckBoxes(1);
tree_1.enableThreeStateCheckboxes(true);


tree_1.saveSelectedItem("ww");// undefined is not a function

asked 2 mins ago

Stefano Maglione

486

Dhtmlx tree api undefined