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SEARCHDOMINO.COM | Developer Tip
November 25, 2002
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IN THIS ISSUE | Table of Contents

1. DEVELOPER TIPS 
   - Featured tip: Show or hide a subform from inside a form
   - Recently posted developer tips

2. IMPORTANT ANNOUNCEMENTS AND LINKS
   - Webcast archive: ND6 App Dev webcast archive
   - Take our poll: What other certifications do you hold?
   - Best Web Links: application development
   - Developer Forum
   - SearchDomino.com Search Engine
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SHOW OR HIDE A SUBFORM FROM INSIDE A FORM | Francesco Sarzana

Ever used a "Computed Subform" in your form to show a chunk of data,
and want to change or hide this subform from INSIDE the form (without
exiting and reloading the form)?

 
This tip is useful if you want subforms loaded or not (or different
subforms loaded) based, for example, on an environmental variable,
and change them on-the-fly with an action bar on the form itself. 

Here's how to do it:

1. Open the form "myForm" 
2. Create a Computed Subform with the formula:
@If(@Environment("myVar") = "Y" ; "Sub1" ; "Sub2") 
3. Create two Actions with the following formulas, respectively:
"Show Sub1"
@Environment("myVar" ; "Y");
@Command( [ViewSwitchForm] ; "myForm" )
and "Show Sub2"
@Environment("myVar" ; "N");
@Command( [ViewSwitchForm] ; "myForm" )

Now you can open the form "myForm" and click on the two action
buttons to switch between the two subforms, or you can substitute
"Sub2" with "" in the Computed subfrom formula to toggle between
hide/show of Sub1 subform. Be sure to switch to the SAME form
(myForm)!

This option for hide/show of chunks of data is much more efficient
than having a section with hide-when formulas, because the section is
ALWAYS loaded and THEN hidden, while a Computed Subform is NOT loaded
if the formula results in a blank string. If Sub1 contains, for
example, an embedded view, you can imagine the performance
improvement...

Do you have comments or questions about this tip?  Bring them to our
developer discussion forum.

>>CLICK here to enter the developer discussion forum: 
http://searchdomino.discussions.techtarget.com/WebX?50@@.ee7740b

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RECENTLY POSTED DEVELOPER TIPS  | SearchDomino Tips

Agent category:
http://searchdomino.techtarget.com/tipsIndex/0,289482,sid4_tax283834_alpD_idx0,00.html 
[1] Agent to replace Date field values

Domino category:
http://searchdomino.techtarget.com/tipsIndex/0,289482,sid4_tax283837_alpD_idx0,00.html
[1] 65kb limit on comboboxes

JavaScript category:
http://searchdomino.techtarget.com/tipsIndex/0,289482,sid4_tax283840_alpD_idx0,00.html 
[1] Checking for Edit Mode on the web
[2] @replace function for JavaScript
[3] Show single category view, the next stage

Other category:
http://searchdomino.techtarget.com/tipsIndex/0,289482,sid4_tax283842_alpD_idx0,00.html 
[1] Simple way to avoid the dialog list synonym blues 

Script category:
http://searchdomino.techtarget.com/tipsIndex/0,289482,sid4_tax283841,00.html
[1] Force a timed delay in your script code

>>See all SearchDomino Developer Tips here:
http://searchdomino.techtarget.com/tips/0,289484,sid4_tax283833,00.html

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:::::::::::  DON'T MISS THESE IMPORTANT MESSAGES AND LINKS  :::::::::
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ND6 APP DEV WEBCAST ARCHIVE | SearchDomino.com 

If you missed our live expert webcast last week with Dave Hatter and
Tim Bankes on the ND6 Application Development Update, it's not too
late. Simply log on at your leisure and enjoy the show! Look for the
follow-up Q & A with Hatter and Bankes soon on SearchDomino.com. 

>> View the archive here:
http://searchdomino.techtarget.com/webcastsTranscriptSecurity/1,289693,sid4_gci862698,00.html
 

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TAKE OUR POLL | SearchDomino.com

Will the new features for application development in ND6 make your
job easier?

>> Vote here:
http://searchdomino.techtarget.com/poll 

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BEST WEB LINKS: APPLICATION DEVELOPMENT | SearchDomino.com

Developer diehards, take heart. Whether its LotusScript, @Functions,
Agents or frames, we guarantee you'll find what you need. You can
also find the latest on eSuite, Sametime and other technologies.  

>> EXPLORE the Best Web Links on application development:
http://searchdomino.techtarget.com/bestWebLinks/0,289521,sid4_tax1f2,00.html    

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DEVELOPER FORUM | SearchDomino.com

One user writes, 
"Hi there, I had a database through which our company reserve a room
for a meeting, some times catering is also order for the meetings. To
reserve a single room it is taking more than 1 min, if they are
trying to reserve a same room for rest of the month every week or it
takes more than 5 mins or so. When reserving the room it checks
whether that room is available for that time on that particular day,
this is where it is taking more time. I used db.search in the script
to find if the room is available for that day or not. The database
contains data upto 3 months reservations & one month old
reservations. I tried to reserve the room deleting all the data than
it took nearly 10 secs, if I added 10 documents then it took nearly
30 sec. I would appreciate if any one tell me how we can reduce the
time it takes to reserve the room. All the users are complaining
about this that they are not able to do any thing if they had to
reserve the room. We are ready to create a new dB even if that is the
alternate solution."  

>> HELP solve this problem:
http://searchdomino.discussions.techtarget.com/WebX?[EMAIL PROTECTED]@.ee7740b/15461!viewtype=threadDate&skip=&expand=
 


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DOMINO/NOTES SEARCH ENGINE | SearchDomino.com

Find Domino information fast. Is Google one of your favorite search
tools? We've partnered with Google to make our Domino/Notes-specific
search engine even better. Why waste time slogging through irrelevant
search results? Try our newly tweaked search engine for the most
targeted Domino/Notes results. 

>>Click here to access our advanced search: 
http://searchdomino.techtarget.com/integratedSearchAdvanced/0,289518,sid4,00.html     
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