|Subject||Re: [IBO] Showing NULL-Columns as in TIB_Grid|
> In IBO4, I believe this code need some modifications since as BufferRowNumRather than use 0 (which is an assumption) it should be replaced by the
> can assume negative, zero and positive values.
> if (abs(DataSource.Dataset.BufferRowNum) >= 0) then begin
> if GridFields[ACol - 1].IsNull then AString := '<null>';
> works better.
BofRowNum property of the dataset. In most cases it will be 0 but there are
those times it is less than or more than zero. It is also important to take
the BufferHasBof property into consideration as well.
The internal references and the external references for IBO buffering are
also virtualized so that filtering can take place as well.
CPS - Mesa AZ