easyui attributes of data-options using

Dynamically generated data-options attributes when building the tree structure can not be used ? ?
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did not understand what you mean , data-options is to define the style and content of the various components of the event Yeah. . .
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not html pages using data-options attribute dynamically generated js in li elements and assign it a data-options property , $ ('

Image

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this does not work , I've tried. . .