Blake,
I would take the click event from your checkbox and map that to an event
handler which enables/disables your StringValidator.
function setValidator(event)
{
if (event.target.selected == true)
{
mx.validators.Validator.enable(view,"paymentInformationModel.purchaseordernumber");
}
else
...
}
Jeff
-----Original Message-----
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Blake
Kadatz
Sent: Wednesday, August 10, 2005 1:39 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] StringValidator and required fields
> For what you're wanting to do, you're best bet will be to drop into
> ActionScript and change your validators at runtime.
I've been working on this trying to figure out the best way to handle it. The
compiler nicely informs me that id tags aren't supported on validators, so it
appears setting the required property on a validator isn't directly possible.
The only way I can determine is that I should be calling the validator's
disable method, eg:
http://livedocs.macromedia.com/flex/15/asdocs_en/mx/validators/Validator
.html#disable
So I modified the PaymentInformation.mxml to have:
<mx:Model id="paymentInformationModel">
<usepurchaseorder>{ usePurchaseOrder.selected }</usepurchaseorder>
<purchaseordernumber>{ purchaseOrderNumber.text }</purchaseordernumber>
... etc ...
</mx:Model>
<mx:StringValidator field="paymentInformationModel.purchaseordernumber"
requiredFieldError="Please enter your purchase order number." />
Then, in CheckoutViewHelper.as, I modified it to have:
public function validateCheckOutForm() : Boolean
{
var validStructures : Number = 0;
var structuresToBeValidated : Number = 2;
// manually set required for non-binding validators
if (view.paymentInformationComp.usePurchaseOrder.selected)
{
mx.validators.Validator.enable(view,
"paymentInformationModel.purchaseordernumber");
}
else
{
mx.validators.Validator.disable(view,
"paymentInformationModel.purchaseordernumber");
}
... etc ...
}
However, this doesn't seem to work. I've tried passing in
"purchaseOrderNumber" and other variations to the disable and enable methods,
but it still shows up as being a required field.
I hope I'm missing something obvious -- my next step would be to use a generic
Validator with a custom validate() function, which all seems rather messy.
Thanks,
Blake
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