Is there a way to reset selection in <rich:tree>

[td121136]

Hi all, i'm using RichFaces 4.3.2.Final, i'm creating the UITree dynamically, is there anyway to reset or clear the selection programmatically? My situation is i dont want user selection to be remembered after user traverse to other pages and come back to the current page.

[bleathem]

The VDL doc for the rich:tree

http://docs.jboss.org/richfaces/latest_4_X/vdldoc/rich/tree.html

or if you prefer the API doc for UITree:

http://docs.jboss.org/richfaces/latest_4_3_X/javadoc/richfaces-components-ui/org/richfaces/component/UITree.html

both refer to a selection attribute of the tree component that is bound to a Collection<org.richfaces.model.SequenceRowKey>.  Try binding that to your backing bean, and setting the collection to empty when you want to reset the selection (followed by a render).

[td121136]

Thanks Brian, that works in xhtml, but my problem is the UITree was created by backend, in that case how to reset it, i tried used set selection to null during TreeSelectionChangeEvent, but no luck, unfortunatelly the setSelection() only accept Collection parameter, if it can work with ValueExpression then my problem might be solve

[td121136]

Hi Brian, i had solved my backend issue by using the value expression as follow:

String str = "#{manager.selectionKeys}";

ValueExpression keys = Expressions.instance().createValueExpression(str).toUnifiedValueExpression();

tree.setValueExpression("selection", keys);

Thanks for help!