IDTSEvents 接口

Defines a set of events used by the TaskHost on behalf of a task.

命名空间：  Microsoft.SqlServer.Dts.Runtime
程序集：  Microsoft.SqlServer.ManagedDTS（在 Microsoft.SqlServer.ManagedDTS.dll 中）

语法

声明
Public Interface IDTSEvents
用法
Dim instance As IDTSEvents

public interface IDTSEvents

public interface class IDTSEvents

type IDTSEvents =  interface end

public interface IDTSEvents

IDTSEvents 类型公开以下成员。

方法

	名称	说明
	OnBreakpointHit	Called when a breakpoint is hit within a task.
	OnCustomEvent	Called by tasks to raise custom task-defined events.
	OnError	Called by a task or container when an error occurs.
	OnExecutionStatusChanged	Called by a task or container when its execution status changes.
	OnInformation	Called any time the task is required to provide information.
	OnPostExecute	Called immediately after the execution logic of the task completes. This event is raised by a task or container immediately after it runs.
	OnPostValidate	Called immediately after the validation logic of the task completes. This event is raised by a task after the task is validated.
	OnPreExecute	Called when a task is about to execute. This event is raised by a task or a container immediately before it runs.
	OnPreValidate	Called when the actual validation logic of the task starts. This event is raised when the validation of the task host or container begins.
	OnProgress	Called to update progress about task execution.
	OnQueryCancel	Called at any juncture in task processing where it is feasible to cancel execution. This event is raised by tasks and containers to determine whether they should stop running.
	OnTaskFailed	Called by the task host when it fails.
	OnVariableValueChanged	Called by the run-time engine. It is not called by tasks.
	OnWarning	Called any time the task is in a state that does not justify an error, but does warrant alerting the client.

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注释

For each method, there is a related object in the DtsEventHandlers collection that handles the event. If the event is disabled, the object will not execute and will return false. If the object does not handle the event at the local level, the event is escalated to the parent container to be handled.

These methods provide indexes into the events collection for the corresponding event handler.

请参阅

参考

Microsoft.SqlServer.Dts.Runtime 命名空间