Validate extendedDataTable selection

[atharumar]

JSF 1.2 Richfaces 3.3.3

using Extended Data Table with okay button

<a4j:commandButton value="OK" reRender="nextPanel" action="#{userBean.takeSelection}" onclick="#{rich:component('thisPanel')}.hide()" oncomplete="#{rich:component('nextPanel')}.show()" styleClass="formButtonClass" /> 

Is there a way to not to show nextPanel untill a row is selected? In other words how to validate the selection is atleast 1 ?

[ibstmt]

You can do a test in your onClick and onComplete expressions:

<a4j:commandButton value="OK" reRender="nextPanel"

action="#{userBean.takeSelection}"

onclick="if (#{userBean.rowSelected}) #{rich:component('thisPanel')}.hide()"

oncomplete="if (#{userBean.rowSelected}) #{rich:component('nextPanel')}.show()"

styleClass="formButtonClass" />

... where you have a isRowSelected method in your bean that returns true if a row was selected. If a row wasn't selected, that same method can generate a message for the user.