ADO WillChangeField and FieldChangeComplete Events
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The WillChangeField Event
The WillChangeField event is triggered before the values of one or more Field Objects are changing.
Note: Before this event returns, set the status parameter to adStatusCancel to cancel the operation that caused this event.
The FieldChangeComplete Event
The FieldChangeComplete event is triggered after the values of one or more Field Objects have been changed.
Note: Before this event returns, set the status parameter to adStatusUnwantedEvent to prevent subsequent notifications.
Note: The WillChangeField event and the FieldChangeComplete event may occur when you set the Value property and calls the Update method with field and value array parameters.
Syntax
WillChangeField numfields,fields,status,objRs
FieldChangeComplete numfields,fields,objErr,status,objRs
| Parameter | Description |
|---|---|
| numfields | The number of Field objects in fields |
| fields | An array that contains Field objects with changes |
| 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 |
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
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