Search...
FAQs Subscribe
Pie
FAQs
Recent topics Flagged topics Hot topics Best topics
Search...
Search within Struts Search Coderanch
Advance search Google search
Register / Login
permaculture playing cards
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
meaningless drivel building better world book thread boost book review grid advertise on coderanch
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Tim Cooke
  • paul wheaton
  • Paul Clapham
  • Ron McLeod
Sheriffs:
  • Jeanne Boyarsky
  • Liutauras Vilda
Saloon Keepers:
  • Tim Holloway
  • Carey Brown
  • Roland Mueller
  • Piet Souris
Bartenders:

Struts help, logic:notEqual and ArrayList size()

 
Feargal Egan
Greenhorn
Posts: 13
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator
Hi all,

I have a html:select box which is populated by an ArrayList stored in the request. The first option in the select box is text saying 'Select Option...', I have coded this as follows:



This works perfectly, but our customer has now decided that if only one option is available, it should automatically be selected and the 'Select Option...' text should not appear in the dropdown.

I thought this would be a fairly simple thing to implement but am having difficulties. I tried using a <logic:notEqual> tag as shown below:



But of course this doesn't work, I get a NoSuchMethodException: Unknow property size.

I've tried several other ideas but all to no avail. I can't imagine this is a difficult thing to do but have to admit defeat.

Somebody has suggested struts expression language, which I have never used. Can anybody help?

Thanks in advance,
Feargal
 
Feargal Egan
Greenhorn
Posts: 13
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator
Sorry, original post without smilies!


Hi all,

I have a html:select box which is populated by an ArrayList stored in the request. The first option in the select box is text saying 'Select Option...', I have coded this as follows:



This works perfectly, but our customer has now decided that if only one option is available, it should automatically be selected and the 'Select Option...' text should not appear in the dropdown.

I thought this would be a fairly simple thing to implement but am having difficulties. I tried using a <logic:notEqual> tag as shown below:



But of course this doesn't work, I get a NoSuchMethodException: Unknow property size.

I've tried several other ideas but all to no avail. I can't imagine this is a difficult thing to do but have to admit defeat.

Somebody has suggested struts expression language, which I have never used. Can anybody help?

Thanks in advance,
Feargal
 
Nicholas Cheung
Ranch Hand
Posts: 4982
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator
Struts EL is similar to JSTL EL, do you know JSTL? If so, you will find that there is only a small difference between them.

Otherwise, here is a simple tutorial about Struts EL:
http://javaboutique.internet.com/tutorials/Struts_EL/

Nick

SCJP 1.2, OCP 9i DBA, SCWCD 1.3, SCJP 1.4 (SAI), SCJD 1.4, SCWCD 1.4 (Beta), ICED (IBM 287, IBM 484, IBM 486), SCMAD 1.0 (Beta), SCBCD 1.3, ICSD (IBM 288), ICDBA (IBM 700, IBM 701), SCDJWS, ICSD (IBM 348), OCP 10g DBA (Beta), SCJP 5.0 (Beta), SCJA 1.0 (Beta), MCP(70-270), SCBCD 5.0 (Beta), SCJP 6.0, SCEA for JEE5 (in progress)

 
David Ulicny
Ranch Hand
Posts: 724
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator


I get a NoSuchMethodException: Unknow property size.



You should have a method getSize() .

SCJP<br />SCWCD <br />ICSD(286)<br />MCP 70-216

 
Feargal Egan
Greenhorn
Posts: 13
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator

You should have a method getSize()



How? Sub class ArrayList and add a getSize() method? Seems a bit excessive for what looks like a trivial problem.

I'll investigate the Struts-EL tutorial.

Thanks for your help!
 
David Ulicny
Ranch Hand
Posts: 724
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator
Of course not subclass ArrayList.

taskList is ArrayList? Just wrap it, and write the method getSize()

SCJP<br />SCWCD <br />ICSD(286)<br />MCP 70-216

 
Feargal Egan
Greenhorn
Posts: 13
posted 20 years ago
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
    Send
  • Quote
  • Report post to moderator
Sorry, I misunderstood!

Wrapping it will work fine I think, thanks!
 
wood burning stoves
reply
reply
    Bookmark Topic Watch Topic
  • New Topic
Boost this thread!
Similar Threads
More...