tree node selection: how to rerender other components conditionally

[bcn]

Depending on the selected node in a rich:tree, I have to rerender other components. To increase performance, I would like to avoid to list all components in the attribute rich:tree@render, because sometimes I don't need to rerender most of the components.

Is there a way to control programmatically which components will be rerendered? Richfaces 4.

Thanks

[iabughosh]

you can use a condition inside the render attribute ,

ex : render="#{mybean.selectedNodeId == 1}" or render="#{mybean.selectedNodeId =='some string value'}"

regards.

[nbelaevski]

Hi,

Yes, you can use EL to point 'render' to a collection of strings that holds IDs of the component to re-render.

[bcn]

Ok thanks to both!