I am moving all my apps to VFP 8.0. I have begun to have serious problems with forms being corrupted. This first occurred when I subclassed Rick Strahl's wwipstuff.vcx so I could override the sendmapimail method and taylor it to my environment's new security requirements. In doing so, I opened a form that had a visual class rep of Rick's original wwipstuff.vcx, and deleted the visual object on the form. Next time I opened the form, I could not, it failed with error like this:
"error loading file: error number nn. udclabel2 or one of its members. Parent: object class is invalid for this container."

I created a new form, and rebuilt it from a backup copy of the original form, moving all objects and code to the new form EXCEPT the visual class dropped on the form.

Today, I have now had this same problem occur to two forms. In the first case, I simply copied a form set to a new project, I added it to the project, opened it, and deleted some label and some text boxes. Closed it. Opened it. Same error. Again, to work around, I created a new form and copied all the objects and method code I needed from the old form a page of objects at a time (multiple page frames). And no, the original problem occured in a form with NO page frames. There were two originally, one with out without a page frame. Both had to be rebuilt to get rid of the class object dropped on the form. (I found one reference by google of a similar occurence based on changed number of pages in a pageframe. not the case here.)

Finally, today I had a form open copying objects from it, and as far as I know deleted nothing on it, changed nothing on it, but later when I tried to open it I must have done something, it can now not be opened.

Pretty frustrating stuff. At least the form now corrupted should be on last weeks tape so I don't have to rebuild it: 12 pages on a frame, LOTS of data and code.

Thanks for any ideas.
Ron.

Ronald D. Edge
Director of Information Systems
http://iuhoosiers.com
http://edgeinfotech.com