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JayDee · Newbie Joined: 10 Apr 2002 Posts: 10 Location: Netherlands

Hi all,

The application I'm currently developing has a number of tabs.
When selected, each tab contains a number of TEXT items, some EDIT items and occasionally a COMBO item.

I've written subroutines (which use DIALOG SHOW,... or respectively DIALOG HIDE,...)to show and hide the correct items in the dialog if a certain tab is selected.

I'm having problems with one of the tabs (the one I added the last). If I have viewed this tab, and I want to select another tab, the TXT items of the 'old' tab are not cleared. Note that the EDIT items from this particular tab were cleared, only the TXT items remain.

I used the debugger and ran this part of the code step by step, but the program does everything it should. Only the effect in the dialog is, that my TXT items are still there.

I also checked variable names to make sure that I didn't make any typing mistakes (and rechecked them), but I can't find what is going wrong. The correct subroutine is called and everything.

I compiled my program to see if it would behave differently at runtime, but the problem is still there.

I tried my program at a friend's PC who runs VDS 4.50. There the problem seems solved in design mode, but when compiled the problem is still there (even after ensuring that VDSRUN30.DLL was not on his system).

- Does anyone know if there's a limitation on the number of TXT items in a dialog that can be handled? I currently have approx. 25 in total.

- Is there a known way to work around this problem? (or should I use groups then)?

- As a tab item is acting as a group (according to VDS3.51 help), what code do I need to enable or disable a group in my program? This could simplify my routines for clearing the dialog when selecting other tabs.

Thanks in advance for your help.

Regards,
Jan

ACE · Valued Newbie Joined: 05 Sep 2002 Posts: 34

Probably the text controls are not contained in the tab group, are you showing/hiding them via show/hide commands each one ?

Make sure that the controls fall in the bundaries of the tab control group

Have you tried your code on another machine ,with th same version you are working with ?
Lioric

Garrett · Posted: Mon Mar 24, 2003 8:19 pm Post subject:

Are you using any GROUP elements?

I had a problem a long time ago similar to this using the tab... But I
was using group elements and it was complete chaos until I figured
out what to do.

-Garrett

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

I made some test code and ran it for a minute which generated 6,577
text elements. Wink

JayDee · Newbie Joined: 10 Apr 2002 Posts: 10 Location: Netherlands

@ACE
All my TXT items are in the boundaries of the tab. I created subroutines to show/hide them.

@Garrett
I'm not using any GROUP elements yet. I thought about this, but didn't test with it.

@FreezingFire
I don't really think that the number of TXT elements is the problem. I have problems to hide them (if I don't need them). I think I only have 30-35 of them, so that shouldn't be too difficult.

Rgs,
Jan

Mac · Posted: Mon Mar 24, 2003 11:49 pm Post subject:

Don't know if ya checked these examples, but they might give
ya some ideas. The last code post was written quite a bit later
than the first. Wink

http://www.vdsworld.com/forum/viewtopic.php?t=291

Cheers, Mac Smile

JayDee · Newbie Joined: 10 Apr 2002 Posts: 10 Location: Netherlands

Hiya Mac,

Nice workarounds in your code!

I didn't test the last 2 code pieces, but I am wondering what happens when using the REMOVE method. I presume that if I remove an item from a dialog, its value (e.g. content of an EDIT field) will be lost, right? In such case, the REMOVE method is good for things like radio buttons, buttons and text items as they will have mostly a static value.

I've used your idea of the SETPOS method instead, because I think that suits the best in my application. Nice one Very Happy

I must say, however, that this type of workaround should not be neccesary and I think that S.A.D.E. should come up with a solution for this. The development environment of VDS 4.50 already shows normal behaviour to the many text items I had in the past (not the .EXE yet), so it looks like it IS possible for them to fix it.

Regards,
Jan

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

Here's a workaround for the REMOVE method. This will retain the value of
the control that is recreated:

JayDee · Newbie Joined: 10 Apr 2002 Posts: 10 Location: Netherlands

This is indeed a workaround I have thought about, but in that way I need quite a lot of variables that temporarily need to contain the values of the original dialog items.

Anyway, thanks for your help.

Rgs,
Jan

Mac · Posted: Wed Mar 26, 2003 10:23 am Post subject:

Hey Jay,

It is true that elements lose their content when removed, so
SETPOS is prolly gonna be easier if ya have much data to
preserve.

But if ya DO want to remove elements and preserve the data,
ya can use a list instead of taking up so many vars. Would still
take quite a bit more code just to keep everything updated
though. Wink

Cheers, Mac Smile