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Although check above solution again. It seems to work as you wanted.

Hello. My wrong phrase, it's not "too many..". Nothing abnormal. It's just the normal behavior of one Event on every grid moving (scrolling). But in my case, I need the less network traffic and best optimization, so I disabled the events with your approach. The question is, how can I get the underlying db record without syncing? Is there any workaround to get the appropriate fields (e.g. ID) from grid itself? Edit: I am using v. 1.90.0.1563 Complete

Hi, We still having this issue, we followed Session List demo and we tried with or without s.Lock; To detail, we're using a UniThreadTimer for each 10 seconds get all sessions from each Node in HyperServer mode to get all sessions info and handle active sessions for licensing purposes, but we're getting a lot of access violations reported in exceptions log when SessionManager.Sessions.ExportSessionsList.Text cannot take sessions info. Userstring is set to "could not lock session" when this error is raisen @Sherzod do you have any clue about that? We're concerned to put our licensing system in production and face some lag or system locks

I think that is better to use a client side approach like this

you could use the inputmask property to limit the valid input characters ...

Hi! procedure TMainForm.UniEdit2Change(Sender: TObject); function MyCif(s: string): Boolean; begin if (s = '0') or (s = '1') or (s = '2') or (s = '3') or (s = '4') or (s = '5') or (s = '6') or (s = '7') or (s = '8') or (s = '9') then Result := True else Result := False; end; begin if not MyCif(Copy(UniEdit2.Text, Length(UniEdit2.Text), 1)) then UniEdit2.Text := Copy(UniEdit2.Text, 1, Length(UniEdit2.Text) - 1); end;