Frequently Asked Component Specific Questions
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TDBAdvGridSlow loading date into TDBAdvGrid
Some dataset implementations have a slow MoveBy operation that causes in turn that TDBAdvGrid is slow. A solution for this is to use a SQL 'SELECT COUNT' operation to supply the number of rows in the dataset to TDBAdvGrid via the event OnGetRecordCount.
In this code snippet, OnGetRecordCount is implemented as:
procedure TForm1.DBAdvGrid1GetRecordCount(Sender: TObject; var Count: Integer); begin Query2.SQL.Text := 'select Count(*) from Country.db'; Query2.Active := True; Count := Query2.Fields[0].AsInteger; Query2.Active := False; end;