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Re: Numbers Only in WOTextField
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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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 >Re: Numbers Only in WOTextField (From: David Avendasora <email@hidden>)

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