Error 2455 - Invalid Reference to Form/Report

[ATSBC03]

I have a Mainform (complaints) and subform (tracking). The subform is on a
separate tab then the main form. On the subform I have another subform
(trackingdate) where it is a form in datasheet that is tracking the different
dates that i need. I have done this before and it worked perfectly. I took
what I had done and copied and pasted it into a different database. Now it is
not working. I have even removed everything and started over. The subforms
are not always used and the tabs are hidden unless a check box is selected to
use them. I have looked through all the areas and haven't been able to find
my error. When i removed (tracking date) it works just fine but when the
nested subform is there everytime i go to a new record I get the above
referenced error. I no longer know what else to try and where the forms are
going wrong. Like I said I have done this before and it worked fine.
Thanks in advance for any help.

 

[Piet Linden]

start here:
http://www.mvps.org/access/forms/frm0031.htm

It's Keri Hardwick's article on referencing controls and their
properties from other places.

 

[ATSBC03]

Thank you for that article. It will help me in the future. However, I am not
using any expressions on the subforms. I am thinking it has to do with the
second subform because if I remove it then it works fine. The link fields are
correct as the child field is field from a table feeding my trackingdate
subform (subform2) and the master field is from tracking (subform1). I am
just not understanding why it worked like this before in another database and
isn't working now. Any help would be appreciated.

 

[ATSBC03]

I traced it to a module that I have been using for a long time. It is
LockBound from Allen Browne's site. I have never had a problem with this but
am now. I have it working now by ignoring the error in the error handler, but
I still would like to know why I am having problems with this module now.