Re: [Tobago] Using validator in custom tag

[Helmut Swaczinna]

Hi,

there's no '{' in "#validator.validate}");

Regards

Helmut


Am 30.03.2010 18:53, schrieb Alf Felis:

Hi all,

I try to use a validator dependent on a property within a custom tag class.

My class extends TagSupport and overwrites the doStartTag() method.
In this method I add a validator depending on a property (see below).

First the property is "false" and no validator will be added to the inExtensionTag. Now (next 
access to the page) the property will change to "true" and the output "Setting 
validator!" shows me, that the validator has been set. But the validator will never be called!

If I always add the validator (not depending on the property), everything works 
fine. The validator will be called on submit.

What is wrong with my approach?
Is there another possibility to do what I want?

Example:

     @Override
     public int doStartTag() throws JspException {
         InExtensionTag inExtensionTag = new InExtensionTag();
         inExtensionTag.setPageContext(pageContext);
         inExtensionTag.setParent(getParent());
         inExtensionTag.setId(id);
         inExtensionTag.setLabel(label);
         inExtensionTag.setValue(value);
         if (isValidationEnabled()) {
             System.out.println("Setting validator!");
             inExtensionTag.setValidator("#validator.validate}");
         }
         inExtensionTag.doStartTag();
         inExtensionTag.doEndTag();
         return super.doStartTag();
     }


Best regards,

Alf