El 31/10/14 a les 12:13, Joost van der Sluis ha escrit: >> >> Well, if you "fix" the dbgrid not to use RecNo, I'm still left with my >> original problem of knowing if I'm positioned at the first or the last >> record (specifically for a TSdfDataset, where FCurRec is the correct >> answer, and I still think it would be the correct value for RecNo). > > With .eof and .bof? But those are not always set, you have to use 'next' > or 'prior' to really know if you are at the first or last record.
Yes, I know it and I said so in my first message. What maybe I didn't say is that I don't want to do either of those (which would make my code more convoluted). I happily (well, kinda) do it when there is no other option, but in this case there is and I'd prefer to avoid: 1) getting a bookmark 2) disable the dataset/datasource events (to avoid an infinite loop) 3) try to use next and prior to determine if I'm at the beginning/end of the table 4) go back to the current record 5) re-enable the events when I can simply do a comparison based on RecNo/RecordCount > (TSdfDataset is not buffered, but with a buffered dataset there really > is no other way to detect the first or last record, since it could be > that those records are simply not fetched yet) I understand that, but my question is specific to TSdfDataset, where FCurRec gives a meaningful answer to that question without the need of scrolling. Bye -- Luca _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
