ADO BeginTransComplete, CommitTransComplete 以及 RollbackTransComplete 事件
定义和用法
事件是某个具体的操作发生后被自动调用的子例程。
- BeginTransComplete 事件在 BeginTrans 调用被完成后触发。
- CommitTransComplete 事件在 CommitTrans 调用被完成后触发。
- RollbackTransComplete 事件在 RollbackTrans 调用被完成后触发。
语法
BeginTransComplete translevel,objerror,status,objconn CommitTransComplete objerror,status,objconn RollbackTransComplete objerror,status,objconn
| 参数 | Description |
|---|---|
| translevel | Long Value, containing the new transaction level of BeginTrans that triggered this event. |
| objerror |
The Error Object that contains the errors that occurred. Note:EventStatusEnum The value must be set to adStatusErrorsOccurred to create an Error object. |
| status | Specify the status of the event execution. Take EventStatusEnum Status Value. |
| objconn | The Connection Object that triggered this event. |
EventStatusEnum Value
| Constant | Value | Description |
|---|---|---|
| adStatusOK | 1 | The operation that triggered this event was successful. |
| adStatusErrorsOccurred | 2 | The operation that triggered this event failed. |
| adStatusCantDeny | 3 | Cannot cancel the suspended operation. |
| adStatusCancel | 4 | Cancel the operation that caused the event. |
| adStatusUnwantedEvent | 5 | Ban the subsequent notifications before the event method execution ends. |
