ADO The WillChangeRecord and RecordChangeComplete Events
❮ Complete Recordset Object Reference
The WillChangeRecord Event
The WillChangeRecord event is triggered before one or more record changes.
Note: Before this event returns, set the status parameter to adStatusCancel to cancel the operation that caused this event or set it to adStatusUnwantedEvent to prevent subsequent notications.
The RecordChangeComplete Event
The RecordChangeComplete event is triggered after one or more record have been changed.
Note: Before this method returns, set the status parameter to adStatusUnwantedEvent to prevent subsequent notifications.
Note: The WillChangeRecord event or the RecordChangeComplete event may occur if you change a field in a record using one of the following Recordset operations: Update, Delete, CancelUpdate, AddNew, UpdateBatch, and CancelBatch.
Syntax
WillChangeRecord reason,numrec,status,objRs
RecordChangeComplete reason,numrec,objErr,status,objRs
| Parameter | Description |
|---|---|
| reason | An EventReasonEnum value that specifies the reason for this event |
| numrec | Indicates the number of records affected |
| status | An EventStatusEnum value that indicates the status of the execution of the event |
| objErr | The name of an Error object that describes the error if status is set to adStatusErrorsOccurred, otherwise it is not set |
| objRs | The name of the Recordset Object that triggered this event |
EventReasonEnum Values
| Constant | Value | Description |
|---|---|---|
| adRsnAddNew | 1 | An operation added a new record |
| adRsnDelete | 2 | An operation deleted a record |
| adRsnUpdate | 3 | An operation updated an existing record |
| adRsnUndoUpdate | 4 | An operation reversed the update of a record |
| adRsnUndoAddNew | 5 | An operation reversed the addition of a new record |
| adRsnUndoDelete | 6 | An operation reversed the deletion of a record |
| adRsnFirstChange | 11 | An operation made the first change to a record |
EventStatusEnum Values
| Constant | Value | Description |
|---|---|---|
| adStatusOK | 1 | The operation that caused the event was successful |
| adStatusErrorsOccurred | 2 | The operation that caused the event failed |
| adStatusCantDeny | 3 | The operation that caused the event cannot be cancelled |
| adStatusCancel | 4 | The operation that caused the event is cancelled |
| adStatusUnwantedEvent | 5 | Prevents subsequent notifications before the event method has finished executing |
❮ Complete Recordset Object Reference
