[RBASE-L] - Re: RECALC causing all images to blink

Fri, 27 Mar 2009 07:57:52 -0700

I rest my case - spell it out  :)
Doug

Wouldn't it have to be VARI rather than VARS? I would have expected just VAR to work, though.
Regards,
Alastair.

Emmitt Dove wrote:

Doug,

 

I believe the short form would be RECALC VAR without the ‘S’.

 

Emmitt Dove

Manager, Converting Applications Development

Evergreen Packaging, Inc.

[email protected]

(203) 214-5683 m

(203) 643-8022 o

(203) 643-8086 f

[email protected]

 

From: [email protected] [mailto:[email protected]] On Behalf Of Doug Hamilton
Sent: Friday, March 27, 2009 9:54 AM
To: RBASE-L Mailing List
Subject: [RBASE-L] - Re: RECALC causing all images to blink

 

A small side note that I found out the hard way: spell out VARIABLES when you do a RECALC VARIABLES.
RECALC VARS does not work, as I incorrectly assumed.
Doug

Emmitt Dove wrote:

Reading in the HELP system for RECALC:

 

“When you use the RECALC command without any options, RECALC redisplays only the variable in the field that started the EEP, and recalculates only expressions using that variable. Use the VARIABLES option to force redisplay of all variables placed on the form and recalculation of all table expressions. Use the TABLES option to force recalculation of expressions in the other tables used in a multi-table form. The TABLES option recalculates lower tables only, not the current table.”

 

This leaves me unsure about the solution suggested below.  Whether to use RECALC or RECALC VARIABLES in your case depends on where the code was triggered – was it triggered by the object you want to redisplay?  If so, RECALC should only refresh that one object.  If elsewhere, you may be stuck with the flicker.

 

What version of R:BASE are you using?  Generally speaking, flicker problems caused by screen redraws were reduced if not eliminated in either later builds of 7.5 or early 7.6.  But I can see where a form with several variable images could be a problem if every one of them was “refreshed” every time you recalculated variables.

 

Emmitt Dove

Manager, Converting Applications Development

Evergreen Packaging, Inc.

[email protected]

(203) 214-5683 m

(203) 643-8022 o

(203) 643-8086 f

[email protected]

 

From: [email protected] [mailto:[email protected]] On Behalf Of Emmitt Dove
Sent: Friday, March 27, 2009 9:13 AM
To: RBASE-L Mailing List
Subject: [RBASE-L] - Re: RECALC causing all images to blink

 

Have you tried RECALC VARIABLES instead of just RECALC?  AFAIK, RECALC VARIABLES will not cause the entire screen to refresh.

 

Just on a whim, assign a component ID to one of the images, and try this:

 

Change the variable behind the image

Do a RECALC VARIABLES

Now do PROPERTY [componentid] REFRESH ‘TRUE’

 

The idea is to refresh just the one image.

 

 

Emmitt Dove

Manager, Converting Applications Development

Evergreen Packaging, Inc.

[email protected]

(203) 214-5683 m

(203) 643-8022 o

(203) 643-8086 f

[email protected]

 

From: [email protected] [mailto:[email protected]] On Behalf Of Michael J. Sinclair, MD
Sent: Thursday, March 26, 2009 8:47 PM
To: RBASE-L Mailing List
Subject: [RBASE-L] - Re: RECALC causing all images to blink

 

Ok, I guess for the moment, I don't have any options. I asked for the "Object Specific Recalc" enhancement, but I am a mere user. Do you think it would be a good idea to request your version of the enhancement, ie a "Redraw = True or False" Property? My programming is working very well so far except for all of the objects blinking a lot, so I want to keep going with it. I could request another enahancement, but I don't want to ask for too much.

Mike

-------------- Original message from Lawrence Lustig <[email protected]>: --------------

<< 

The Variable Image Object does NOT change after the EEP changes the value of the variable unless I use the RECALC command. Is there another way to refresh the appearance of a Variable Image object without using RECALC??

>> 

 

Not to the best of my knowledge.  I also use RECALC when I've changed some variable values (text variables in my case) in code and want the screen to reflect the updates.  This works fine for me but I don't have images — or more than one or two, anyway.

 

I think what you want is to request an enhancement like PROPERTY VariableComponentID REDRAW 'TRUE', which is guaranteed to redraw only a single component using the current value of the variable attached to it.

--

Larry

 


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