如何使JSF中的Rich ToolTip可见或不可见？

Question

i have a question concerning rich:toolTip component. I have the following jsf code:

<rich:toolTip followMouse="true" >
    <h:outputText value="#{messages.dto.Station}" escape="false" converter="bbCodeConverter" />
</rich:toolTip> 

This ToolTip works grateful, but it will be sign a empty tooltip, if messages.dto.Station is empty too. How can i solve this problem in that way, that the tooltip is not visible, if messages.dto.Station is empty?

Thanks for helping me !

Greetz Marwief

Answer 1

<rich:toolTip followMouse="true" 
  rendered="#{messages.dto.Station !=null or messages.dto.Station !=''}" >
  <h:outputText value="#{messages.dto.Station}" 
    escape="false" converter="bbCodeConverter"/>
 </rich:toolTip>

Using the rendered attribute will help you to only show when your #{messages.dto.Station} is not empty rich faces doc link

Answer 2

In JSF 1.2 you can use the rendered attribute as @BholaVishwakarma has described.

That should work on JSF 1.2 also

Here is a free tip for you. You should avoid using uppercase letters on beans. messages.dto.Station . It should be messages.dto.station

Try the following

<rich:toolTip followMouse="true" 
  rendered="#{messages.dto.Station !=null and not empty messages.dto.Station}">
...