| [Overview][Constants][Types][Classes][Procedures and functions][Index] |
Called whenever data changes in the current record
Source position: db.pas line 1516
published property TDataSource.OnDataChange: TDataChangeEvent |
OnDatachange is called whenever a field value changes: if the Field parameter is set, a single field value changed. If the Field parameter is Nil, then the whole record changed: when the dataset is opened, when the user scrolls to a new record. This event handler can be set to react to data changes: to update the contents of non-DB-aware controls for instance. The event is not called when the datasource is not enabled.
|
Called whenever the data in the dataset must be updated |
|
|
Called whenever the state of the dataset changes |
|
|
Event triggered after the cursor has changed position. |
|
|
Event triggerd when the field's value has changed |
|
|
Enable or disable sending of events |
| lazarus-ccr.sourceforge.net |