>Do you open all the base tables in data environment or you just SET EXCLUSIVE OFF? Now, I don't have the base tables in the data environment. I am using private data session.

I have a habit of putting all the needed tables in the DE, but it's a personal choice. If the tables are not included in the DE, VFP will use the current SET EXCLUSIVE status to open the tables.

Please note that SET EXCLUSIVE is scope to the current data session and since you are using private data session, make sure that you initialize the SET EXCLUSIVE status before the view is loaded (I put my scope SETs in the BeforeOpenTable() in the DE)