hi here is a patch for two bugs:
*TFloatField.SetAsString doesn't look at DecimalSeparator for converting a string into a Float (this fixes lazarus issue 893: http://www.lazarus.freepascal.org/mantis/view.php?id=893 )

*TBooleanField.SetAsString won't accept an empty string as a valid value, also the patch allows strings as T, F or any starting substring of DisplayValues to be accepted.

Regards.

Jesus Reyes A.