Thanks for the reply. I will move to Tapestry 4 soon
but for now I need to implement in Tapestry 3.
I have placed the Delegator component after the
PropertySelection component within the TD tag. I don't
understand how MyDelegate accesses the component that
it needs to validate. Here is what I have so far:
<pre>
<td>
<select jwcid="[EMAIL PROTECTED]"
model="ognl:colors" value="ognl:color"></select>
<span jwcid="@Delegator"
delegate="ognl:myDelegate"/>
</td>
public class MyDelegate implements IRender {
public void render(IMarkupWriter w, IRequestCycle
c) {
if (c.isRewinding()) {
// validate component
// - if user selected red then print "***"
}
}
}
Home.java has a getMyDelegate method.
</pre>
1. How does the render method get access to the
component it needs to valid to validate?
2. If I am in rewind then how does the *** ever get
printed in case of error since output is swallowed.
I am currently digging thru the source for
ValidationDelegate for clues as well as looking thru
Tapestry in Action and EnjoyWebDevWithTapestry.
Thank you very much,
Larry Sherrill
--- Kent Tong <[EMAIL PROTECTED]> wrote:
> Larry Sherrill <larrypsherrill <at> yahoo.com>
> writes:
>
> > In my submit method I loop through the list of
> Persons
> > to validate that the favoriteColor is not the
> choice
> > "Red". If it is, then I want to mark the
> corresponding
> > propertySelection field with a "**" to the right
> of
> > the PropertySelection drop down.
>
> The cleanest solution is to upgrade to Tapestry 4
> where
> you can provide a validator to validate your
> PropertySelection
> component.
>
> If you must stick to tapestry 3, you may add a
> Delegator component
> just after your PropertySelection, implement IRender
> in code.
> In that code you can perform the check if it's a
> rewind.
>
> --
> Author of a book for learning Tapestry
> (http://www.agileskills2.org/EWDT)
>
>
>
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