>Hi, Folks,
> How to solve the error message as this title while only one user use the data. It's strange that when I try to skip from new row in grid(the addnew property set to true), the error message popout and even ignore the error, I still couldn't edit the new record in the grid.

See Re: Record is in use by another user Thread #659506 Message #660278 and the whole thread.

In my particular case I fixed this problem by setting all tables (even lookups) into buffering mode 5. I don't do any inserts.