繁體中文当前位置: 首页 > 网络学院 > 服务端脚本教程 > ADO > ADO InfoMessage 事件
ADO InfoMessage 事件
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-03-04 浏览: 421 :: 
收藏到网摘: n/a
An event is a subroutine that can be called automatically after a specific operation has occurred.
事件就是在一个具体操作发生之后自动请求的一个字程序。
The InfoMessage event can be fired if a warning occurs in a connection operation.
如果在连接操作时产生警告，那么将会激发InfoMessage事件。
Syntax
语法
InfoMessage objerror,status,objconn |
| Parameter参数 | Description描述 |
|---|---|
| objerror | An Error object that contains the errors that are returned 指定一个包含所发生的错误的Error对象 |
| status | An EventStatusEnum value. If a warning occurs, status is set to adStatusOK and the objerror contains the warning 指定一个EventStatusEnum值。如果产生警告提示，那么状态必须设置为adStatusOK，并且objerror将保留这个警告提示 |
| objconn | A Connection object. The connection for which the warning occurred 指定在出现警告提示的连接对象 |
EventStatusEnum Values
| Constant常量 | Value值 | Description描述 |
|---|---|---|
| adStatusOK | 1 | The operation that fired the event was successful 激发事件操作成功 |
| adStatusErrorsOccurred | 2 | The operation that fired the event failed 激发事件操作失败 |
| adStatusCantDeny | 3 | Cannot cancel the pending operation 不可以取消正处于处理执行中的操作 |
| adStatusCancel | 4 | Cancels the operation that fired the event 取消激发事件的操作 |
| adStatusUnwantedEvent | 5 | Prevents subsequent notifications before the event method has finished executing 在时间的运行方法终止运行之前禁止后续的报告 |
评论 (0) All
