>Hi Cetin,
>
>Actually, I think, I found couple of problems.
>
>First of all, I had some custom method for ForeColor and BackColor in the grid. I added LockScreen to prevent updating screen. I also found bunch of problems with our framework Add method (it serves double duity Add/Save depending on EditMode). Unfortunately, I'm not in charge of our classes code, so I reported this problem to my colleague, but she is leaving, so I don't know, how long I need to wait for resolution...

The grid color methods should fire for each visible cell of the grid in the next Refresh, not for all the records you updated.

For things like this, I'd rather open the table AGAIN, and do the replace for < filter expression > there, close that second instance, and get back to the grid once this is over, and just refresh it.