Using checkbox value in Validator validwhen test

[Dornback, Ken]

Problem: I don't know how to test a checkbox setting in the validwhen
test var-value.  

I have a checkbox and a text field. I only need  to validate the text
field when the checkbox is checked.  I cannot get this to work using
validwhen (other validwhens do work that use different types of tests).
It always requires the text field value be supplied regardless of the
checkbox setting.  The checkbox sets the options.EMailConfig.enabled
property (The enabled field in the code does have a getter  -
isEnabled()).  Here is the xml I've tried:

 

            <field  property="options.EMailConfig.primaryServer"
depends="validwhen">

                <arg0 key="AlertsOptions.EMAIL_PRIMARY"/>

                <var>

                <var-name>test</var-name>

                <var-value>((options.EMailConfig.enabled == null) or
(*this* != null))</var-value>

            </var>

            </field>

 

I've also tried !options.EMailConfig.enabled for and it also fails.
Thanks.