Enable / Disable a button Based on a value

Question

Hi all,
How can i enable or Disable a Button Based on some input Text value.
Here is the ADF Code fragment:
*<af:switcher id="customActionButtons"*
*facetName="#{actionAvailable.isCustomActionButtons}">*
*<f:facet name="true">*
*<af:panelGroupLayout layout="horizontal" id="pgl10">*
*<af:commandToolbarButton actionListener="#{invokeActionBean.setOperation}"*
*text="#{wf:getResourceValue('APPROVE', 'bindings.customActions')}"*
*disabled="#{!bindings.APPROVE.enabled}"*
*action="#{invokeActionBean.invokeOperation}"*
*partialSubmit="false"*
*visible="#{wf:isCustomActionAvailable('APPROVE', 'bindings.customActions')}"*
*id="ctb2">*
*<f:attribute name="DC_OPERATION_BINDING"*
*value="bindings.APPROVE"/>*
*</af:commandToolbarButton>*
*<af:inputText value="#{bindings.input.inputValue}"*
*label="#{bindings.input.hints.label}"*
*required="#{bindings.input.hints.mandatory}"*
*columns="#{bindings.input.hints.displayWidth}"*
*maximumLength="#{bindings.input.hints.precision}"*
*shortDesc="#{bindings.input.hints.tooltip}"*
*id="it1">*
*<f:validator binding="#{bindings.input.validator}"/>*
*</af:inputText>*
I have highlighted the Button and Input text in Bold.
Any suggestions,
Thanks,
karthik

Answer 1

you need to set the autosubmit property for the text field to true. and set the partial trigger for the the button to that input text id.
and set the rendered property for the button based on the input text value.
same idea is exist in this link:
http://groundside.com/blog/GrantRonald.php?title=conditional_rendering_of_jsf_fields_depe&more=1&c=1&tb=1&pb=1
Edited by: M.Jabr on Feb 7, 2011 1:26 AM