> -----Original Message-----
> From: Bryan Hilterbrand [mailto:[EMAIL PROTECTED]]
> Sent: Friday, September 20, 2002 2:14 PM
> To: Struts Users Mailing List
> Subject: Re: Logic tag
>
>
> Pardon me for jumping into this thread...
>
> Once you use bean:define, is it possible to change the value?
> I wanted to use bean:define like this:
>
> <bean:define id="resultsEmpty" value="true"/>
> <logic:iterate id="code" name="myForm"
> property="codeList" type="Foo">
> <bean:define id="resultsEmpty" value="false"/>
> <bean:write name="code" property="desc"/>
> </logic:iterate>
> <logic:equal property="resultsEmpty" value="true">
> No records found.
> </logic:equal>
>
> This didn't work. It barfed on the second bean:define, but I
> have a feeling
> the logic:equal won't work either.
You can't redefine a bean of the same name on the same page. But you can do
what you want more easily than that, as long as the collection you are
iterating over implements java.util.Collection (or extends something that
does):
<logic:empty name="myForm" property="codelist">
No records found.
</logic:empty>
--
Martin Cooper
>
> Bryan
>
> ----- Original Message -----
> From: "Martin Cooper" <[EMAIL PROTECTED]>
> To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]>
> Sent: Friday, September 20, 2002 12:52 PM
> Subject: RE: Logic tag
>
>
> You'll need to do this:
>
> <bean:define id="cost"><<mytaglib:getvalue name="cost"
> /></bean:define>
> <logic:empty name="cost">
> FREE
> </logic:empty>
> <logic:notEmpty name="cost">
> <bean:write name="cost"/>
> </logic:notEmpty>
>
> To test if a value is empty, you need to have something to
> test against.
> Since your tag is just writing out the value, you need to
> capture that value
> first, by defining a bean for it. Since the value of your
> output will never
> be null, you cannot use <logic:present> to check it; you need to use
> <logic:empty> instead.
>
> --
> Martin Cooper
>
>
> > -----Original Message-----
> > From: Tejas Bavishi [mailto:[EMAIL PROTECTED]]
> > Sent: Friday, September 20, 2002 8:55 AM
> > To: '[EMAIL PROTECTED]'
> > Subject: Logic tag
> >
> >
> > Hi,
> >
> > I have a question on using logic tags.
> >
> > In the following example, mytaglib is the tag library
> > developed by me. I am
> > printing the value returned by the following tag on the JSP page.
> >
> > <TD>
> > <mytaglib:getvalue name="cost" />
> > </TD>
> >
> >
> > Now, I want to check that if the value returned by mytag is
> > "", then I want
> > to print FREE. I tried the following code.
> >
> > <logic:equal property="<mytaglib:getvalue name="cost" />" value="" >
> > FREE
> > </logic:equal>
> >
> >
> > But the text FREE is printed regardless of the value returned
> > by mytag.
> > Obviously, I am doing something wrong or my approach is not correct.
> > Can someone please guide me on this.
> >
> > Many Thanks,
> > Tejas
> >
> >
> >
> >
> > --
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> >
> >
>
>
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