[AccessD] Form corruption?

[John W. Colby]

Thanks for doing that Janet.

I suspect that this has to do with instances of DAO recordsets.  I have 
never tested controls per se but I did once test DAO recordsets and came 
up with that same number.  I would bet that if you tested with non data 
aware controls you would find entirely (and larger) numbers.  Things 
like labels and lines etc.

I am guessing that there is some sort of garbage collection process that 
is scavenging the dao pointers, which allows the different numbers you 
are seeing.

John W. Colby

On 3/9/2015 11:29 AM, Janet Erbach wrote:
> And I am doing that very test right now.  With interesting results, too -
> inconsistent ones.
>
> 1)  When I run the test to draw objects on the form one right after
> another, Access consistently chokes at object 1040.
>
> 2)  After I delete those 1040 objects and start drawing again, Access will
> add another 1040 - a total of 2080 having been drawn to the form in all -
> before it chokes.
>
> 3)  If I draw in 'batches' - add 500, delete 500, add 500 more - I can keep
> going for a long time.  (This is with saving the form, closing it down, and
> re-opening it after each batch.)  I got up to a total count 20,000 some
> objects that had been drawn to the form over it's 'life time' before access
> gave up.
>
> 4)  I started playing with drawing objects in different batch sizes.  I
> just now ran a few batches of 500, then ran one of 2,000, then upped it to
> 5,000 .  Access choked  after drawing a total of 6120 objects.
>
> So it seems that Access is inconsistent in it's response to how many
> objects have been drawn, deleted, and re-drawn on the form over the course
> of it's lifetime.  Which is the ammo I need to bring to my boss when I tell
> him the whole form handling routine has to be re-written.
>
> Janet
>
>
>
>
>
> On Tue, Mar 3, 2015 at 6:38 PM, John W. Colby <jwcolby at gmail.com> wrote:
>
>> It sounds like it's time for Janet to do a test!
>>
>> ;)
>>
>> John W. Colby
>>
>> On 3/3/2015 7:35 PM, Jim Dettman wrote:
>>
>>> The number given has always been 754,  but that has drifted upwards to
>>> over 1,000 in later versions.   I posted all the counts a few years back.
>>>
>>> Jim
>>>
>>> Sent from my iPhone
>>>
>>>   On Mar 3, 2015, at 6:45 PM, Charlotte Foust <charlotte.foust at gmail.com>
>>>> wrote:
>>>>
>>>> It used to be in the documentation, but I haven't looked it up recently
>>>> because it became moot after they introduced tab controls.
>>>>
>>>> Charlotte
>>>>
>>>>
>> --
>> AccessD mailing list
>> AccessD at databaseadvisors.com
>> http://databaseadvisors.com/mailman/listinfo/accessd
>> Website: http://www.databaseadvisors.com
>>