I have a VFP7 application that is used by a church group to register attendees at conventions, record payments and meal preferences, print nametags, and so on. Last year, while it was still a VFP6 application the group started using it for registering attendees at several different kinds of meetings. They did this by copying the whole application into different locations.
In the latest round of enhancements, I've moved from VFP6 to 7, and so I'm now trying to let them have a single installation of the executable file, but provide choices at run time of which data set to use. That part seems to work fine. But the first time they open one of the old data sets, I want to check the file and table structures and--if the data set doesn't have the two new tables and two new columns in old tables that I added during the last enhancements--I want to add them (and update any views that use them).
When my code detects a missing table in the data set the user is trying to open and tries to ADD it, I get a 1529 error, telling me that the table I'm trying to add already exists in the main project data set. Indeed, whenever I open the database for an alternate data set, the data set of the main project opens automatically. Even if I don't have the project open and do it all in the Command Window (which keeps the data set registered in the project from opening), I still get the 1529 error. Why can't I add a table to data set 2 if the table already exists in data set 1?
Thanks for any light you can shed on this,
Headwinds
In the latest round of enhancements, I've moved from VFP6 to 7, and so I'm now trying to let them have a single installation of the executable file, but provide choices at run time of which data set to use. That part seems to work fine. But the first time they open one of the old data sets, I want to check the file and table structures and--if the data set doesn't have the two new tables and two new columns in old tables that I added during the last enhancements--I want to add them (and update any views that use them).
When my code detects a missing table in the data set the user is trying to open and tries to ADD it, I get a 1529 error, telling me that the table I'm trying to add already exists in the main project data set. Indeed, whenever I open the database for an alternate data set, the data set of the main project opens automatically. Even if I don't have the project open and do it all in the Command Window (which keeps the data set registered in the project from opening), I still get the 1529 error. Why can't I add a table to data set 2 if the table already exists in data set 1?
Thanks for any light you can shed on this,
Headwinds
