[AccessD] 64-but ONLY front end ?

[John Colby]

Ryan, think about using a table to store the subform control name / 
subform name and other link info.  This allows it to be "table driven", 
one of my favorite concepts.  You have a place to go to see what 
subforms are linked to what subform controls.  Then you can use a 
collection to load the table into class instances one time as the app 
opens, one instance for each record, thus "caching" that info for 
instantaneous usage.  IIRC you can store objects in the collection using 
a name so that you can index directly into the correct record when needed.

If you use classes this stuff is much easier.  The classes contain the 
code to do the linking / unlinking, loading the data from the table etc.

You would need a tab class (to sink the events generated by clicks or 
focus), a subform control class to hold the subform name and link data, 
and a collection class to load all that table stuff into.

As a main form with tabs loads, it will load a tab class for each tab.  
The tab class would load a subform control class for the embedded 
subform control.  The subform control class would go get it's link 
info.  Then as the user clicks or otherwise causes a tab to get the 
focus the event would call into the subform control class to tell it to 
load the subform and link it up.  As it loses the focus, it calls back 
into the class to tell it to unload.

I did all this stuff in my framework, but never tested it in later 
versions of access.

jwc

I'd be interested to know what is using up all the memory though.  I did 
run into the limitation of open record sets which is why I did this 
stuff.  Never ran into the thing you are discussing.  Of course it might 
be something triggered by changes in the 2013 version.  I never used 
anything past 2007.

On 1/6/2017 6:26 PM, Ryan Wehler wrote:
> John,
>
>    That's more or less what I ended up doing today. :) it probably needs some fine tuning though.
>
> Sent from my iPad
>
>> On Jan 6, 2017, at 5:17 PM, John Colby <jwcolby at gmail.com> wrote:
>>
>> Ryan,
>>
>> I did what I referred to as "JIT subforms", i.e. linking the subforms when the tab was clicked on.  I used a class (of course) to manage it.  The event on the tab triggered a method in the loaded class to link the suvbform.  When the user moves off the tab, the subform is unlinked.  Of course you end up with situations where you need specific forms to remain linked once the tab is clicked, typically subforms that are used often and require a long time to load once linked.
>>
>> IIRC I used SysVars to store the names of the subforms that would remain loaded.
>>
>> It took a bit of dev work but once working it worked quite well.
>>
>> jwcolby
>>
>>> On 1/6/2017 9:28 AM, Ryan W wrote:
>>> More statistics:
>>>
>>> ?returnvm
>>>
>>>
>>> (Reporting module loaded)
>>> 1.391 GB of VM used.
>>>
>>> (Prepatory form loaded)
>>> 1.194 GB of VM used.
>>>
>>> (Analytics form loaded)
>>> 1.135 GB of VM used.
>>>
>>> (Login Form loaded)
>>> 1.06 GB of VM used.
>>>
>>> (Switchboard Loaded)
>>> 0.803 GB of VM used.
>>>
>>> (Nothing open but my Access FE (no forms loaded))
>>> 0.645 GB of VM used.
>>>
>>>
>>>
>>> With that once I get to the reporting module if I hit "print preview" on
>>> all of my selected reports (7) to print and give to the client I get an out
>>> of resources error.  Those are the most used forms in the entire FE.  It
>>> wouldn't be uncommon for some of our data reviewers to have all of those
>>> open bouncing between them (they used to do it before via hotkeys (Ctrl-R
>>> for Analytical, Ctrl-M for Main, Ctrl-B for Prep, Ctrl-W for Login etc)..
>>> so even though you PREVIOUSLY with Access 2003 you couldn't see a tab, the
>>> same forms were loaded then that are loaded now. The key difference is
>>> Access 2013. It must simply use more memory.
>> -- 
>> John W. Colby
>>
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-- 
John W. Colby