>I've got form with 2 pages. On 1st I've got grid based on sql command (2 tables). When I choose one row on grid, I can edit fields on the 2nd. But when I make modification to db and choose 1st page I othen don't get actual data. In Activate method of 1'st page I set the recordsource property of grid as new select ... .Modification on 2nd page are in transaction. When I once again choose 2nd page and then 1st grid shows actual data. Why?

Sounds like you need to refresh the grid or (if it's a view of other SQL) requery the data and then refresh the grid.

HTH