`TCustomSQLQuery`
pt	ro	OnCalcFields
pt	ro	OnDeleteError
pt	ro	OnEditError
pt	ro	OnFilterRecord
pt	ro	OnNewRecord
pt	ro	OnPostError

`TCustomBufDataset`
pl		OnUpdateError

`TDBDataset`

`TDataSet`
		OnCalcFields
		OnDeleteError
		OnEditError
		OnFilterRecord
		OnNewRecord
		OnPostError