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Posted to taglibs-user@tomcat.apache.org by Brian Buckley <br...@attbi.com> on 2003/04/28 18:28:46 UTC

, zero divide

When one uses the <fmt:formatNumber ../> where the value of the number is a
zero divide, a "?" is sent to output.

Is there a convenient way to make <fmt:formatNumber/> print an alternate
message?

Brian

-------------------

<%-- prints "?" but we want "Zero divide" --%>
<fmt:formatNumber value="${5 / 0 }" pattern="0.00%;" />




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RE: , zero divide

Posted by Mark Starmer <ma...@markstarmer.co.uk>.
I've (foolishly) not really played much with the format tags but looking
at the syntax you can do a great deal with patterns etc. like you say.
There do seem to be hundereds of functions in with it. One I do like is
the <fmt:setLocale /> which can be used to format dates and numbers for
every country in the world...

Best Regards

Mark Starmer

http://www.markstarmer.co.uk

-----Original Message-----
From: Brian Buckley [mailto:briankbuckley@attbi.com] 
Sent: 28 April 2003 19:21
To: Tag Libraries Users List
Subject: Re: <fmt:formatNumber ../>, zero divide


> Try this...
>
> <c:set var="pagNonZeroVal">
> <fmt:formatNumber value="${5 / 0 }" pattern="0.00%;" /> </c:set>
> <c:if test="${pagNonZeroVal == '?'}">
> <c:set var="pagNonZeroVal">
> <!--Display the output value you want-->
> 0
> </c:set>
> </c:if>
>
> You may need to play with the syntax, that should work though

Thanks, Mark.  Your solution will get it done.

I was thinking about all the numberformat options available in an Excel
spreadsheet, and was hoping (unrealistically probably) one could enter
some fancy pattern or other attribute to the fmt:formatNumber tag to do
it even more succinctly.



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Re: , zero divide

Posted by Brian Buckley <br...@attbi.com>.
> Try this...
>
> <c:set var="pagNonZeroVal">
> <fmt:formatNumber value="${5 / 0 }" pattern="0.00%;" />
> </c:set>
> <c:if test="${pagNonZeroVal == '?'}">
> <c:set var="pagNonZeroVal">
> <!--Display the output value you want-->
> 0
> </c:set>
> </c:if>
>
> You may need to play with the syntax, that should work though

Thanks, Mark.  Your solution will get it done.

I was thinking about all the numberformat options available in an Excel
spreadsheet, and was hoping (unrealistically probably) one could enter some
fancy pattern or other attribute to the fmt:formatNumber tag to do it even
more succinctly.



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RE: , zero divide

Posted by Mark Starmer <ma...@markstarmer.co.uk>.
Try this...

<c:set var="pagNonZeroVal">
	<fmt:formatNumber value="${5 / 0 }" pattern="0.00%;" />
</c:set>
<c:if test="${pagNonZeroVal == '?'}">
	<c:set var="pagNonZeroVal">
		<!--Display the output value you want-->
		0
	</c:set>
</c:if>

You may need to play with the syntax, that should work though

-----Original Message-----
From: Brian Buckley [mailto:briankbuckley@attbi.com] 
Sent: 28 April 2003 17:29
To: taglibs-user@jakarta.apache.org
Subject: <fmt:formatNumber ../>, zero divide


When one uses the <fmt:formatNumber ../> where the value of the number
is a zero divide, a "?" is sent to output.

Is there a convenient way to make <fmt:formatNumber/> print an alternate
message?

Brian

-------------------

<%-- prints "?" but we want "Zero divide" --%> <fmt:formatNumber
value="${5 / 0 }" pattern="0.00%;" />




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