I have used this instruction but it returns null
TreeTable treeTable = (TreeTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("form:apps");
TreeNode no = treeTable.getRowNode();
Thank's for your response
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What version of primefaces are you using? How is your view and managed bean? – Jose Amadeo Diaz Diaz Apr 26 '16 at 05:17
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Hello, I'm using the framework jsf, primefaces 5.3, – Ines Zarriaa Apr 26 '16 at 16:34