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Posted to user@struts.apache.org by Joseph Yang <ya...@rewardstream.com> on 2003/04/11 00:04:11 UTC

How to use Struts Validator to validate web element dependencies?

Hello all,

On the Jsp page, there are a checkbox(please contact me) and a text box (my
email address)

the text box will become required only if user check the checkbox

How should I handle this using Struts Validator?

Thanks


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Re: How to use Struts Validator to validate web element dependencies?

Posted by Jeff Kyser <kt...@comcast.net>.
Use the 'requiredif' rule. Here's an example of a form
with radio button for uploading information from a FormFile
OR a textarea, depending on which radio button is set.
See the validation docs for more info:

	http://jakarta.apache.org/struts/userGuide/dev_validator.html

I'm using 1.1b3, so the variable names still use field-test,
field-value instead of the later (legal javascript names) fieldTest, 
fieldValue.

HTH,

-jeff

	    <form name="uploadForm">
             <field property="inputVia" depends="required">
                 <arg0 key="uploadForm.inputVia.errorname"/>
             </field>
	        <field property="file.fileName" depends="requiredif">
	            <arg0 key="uploadForm.file.errorname"/>
                 <var>
                   <var-name>field[0]</var-name>
                   <var-value>inputVia</var-value>
                 </var>
                 <var>
                   <var-name>field-test[0]</var-name>
                   <var-value>EQUAL</var-value>
                 </var>
                 <var>
                   <var-name>field-value[0]</var-name>
                   <var-value>FILE_SELECT</var-value>
                 </var>
	        </field>
             <field property="manualText" depends="requiredif">
                 <arg0 key="uploadForm.manualText.errorname"/>
                 <var>
                   <var-name>field[0]</var-name>
                   <var-value>inputVia</var-value>
                 </var>
                 <var>
                   <var-name>field-test[0]</var-name>
                   <var-value>EQUAL</var-value>
                 </var>
                 <var>
                   <var-name>field-value[0]</var-name>
                   <var-value>MANUAL_INPUT</var-value>
                 </var>
             </field>
	    </form>


On Thursday, April 10, 2003, at 05:04  PM, Joseph Yang wrote:

> Hello all,
>
> On the Jsp page, there are a checkbox(please contact me) and a text 
> box (my
> email address)
>
> the text box will become required only if user check the checkbox
>
> How should I handle this using Struts Validator?
>
> Thanks
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>


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