Re: Numbers Only in WOTextField
Re: Numbers Only in WOTextField
- Subject: Re: Numbers Only in WOTextField
- From: Chuck Hill <email@hidden>
- Date: Tue, 10 Nov 2009 12:07:34 -0800
On Nov 10, 2009, at 11:52 AM, David Avendasora wrote:
Never mind! Great minds think alike, right Lon?
http://lists.apple.com/archives/webobjects-dev/2009/Oct/msg00342.html
And not so great minds don't read the docs? :-P
WOTextField extends WODynamicElement, not WOComponent.
WODynamicElement same same, but very different. No have template.
The WODynamicElements are not really intended to be sub-classed.
There were not written with that in mind. You will pretty much have
to re-implement it. The other approach is to wrap it in a WOComponent
and, yes, pass in all the possible bindings.
You might also be able to add to the bindings in Application using
public WOElement dynamicElementWithName(String aName,
NSDictionary<String,WOAssociation> someAssociations, WOElement
anElement, NSArray<String> aLanguageArray)
Chuck
On Nov 10, 2009, at 2:29 PM, David Avendasora wrote:
Hi all,
Okay, brace yourselves, this isn't a Java Client testimonial!
There are lots of places in our Web apps where we have a
WOTextField that should only ever be given numbers. I don't want to
deal with any chance that anything other than numbers will be
passed on the server, so I added this javascript to the page:
<script language = "Javascript">
<!--
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode
if (charCode > 31 && (charCode < 48 || charCode > 57))
return false;
return true;
}
//-->
</script>
And added this binding to the WOTextField: onkeypress="return
isNumberKey(event)"
This works great. Exactly what I want, but I have literally
hundreds of places that I need to use this, and since the code will
always be the same, is it possible to simply extend WOTextField so
all I have to do is simply replace calls to WOTextField with
MYNumberField without having to manually pass through all of
WOTextField's bindings (value = ^val)
Thanks!
Dave
David Avendasora
Senior Software Engineer
K12, Inc.
*****
WebObjects Documentation Wiki : http://wiki.objectstyle.org/confluence/display/WO/
*****
WebObjects API: http://developer.apple.com/legacy/mac/library/documentation/MacOSXServer/Reference/WO54_Reference/index.html
*****
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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