WmiDataReaderTask.InitializeTask 方法
Initializes the properties associated with the WmiDataReaderTask task. This method is called by the runtime and is not used in code.
命名空間： Microsoft.SqlServer.Dts.Tasks.WmiDataReaderTask
組件： Microsoft.SqlServer.WMIDRTask (在 Microsoft.SqlServer.WMIDRTask.dll 中)
語法
'宣告
Public Overrides Sub InitializeTask ( _
connections As Connections, _
variableDispenser As VariableDispenser, _
events As IDTSInfoEvents, _
log As IDTSLogging, _
eventInfos As EventInfos, _
logEntryInfos As LogEntryInfos, _
refTracker As ObjectReferenceTracker _
)
'用途
Dim instance As WmiDataReaderTask
Dim connections As Connections
Dim variableDispenser As VariableDispenser
Dim events As IDTSInfoEvents
Dim log As IDTSLogging
Dim eventInfos As EventInfos
Dim logEntryInfos As LogEntryInfos
Dim refTracker As ObjectReferenceTracker
instance.InitializeTask(connections, _
variableDispenser, events, log, eventInfos, _
logEntryInfos, refTracker)
public override void InitializeTask(
Connections connections,
VariableDispenser variableDispenser,
IDTSInfoEvents events,
IDTSLogging log,
EventInfos eventInfos,
LogEntryInfos logEntryInfos,
ObjectReferenceTracker refTracker
)
public:
virtual void InitializeTask(
Connections^ connections,
VariableDispenser^ variableDispenser,
IDTSInfoEvents^ events,
IDTSLogging^ log,
EventInfos^ eventInfos,
LogEntryInfos^ logEntryInfos,
ObjectReferenceTracker^ refTracker
) override
abstract InitializeTask :
connections:Connections *
variableDispenser:VariableDispenser *
events:IDTSInfoEvents *
log:IDTSLogging *
eventInfos:EventInfos *
logEntryInfos:LogEntryInfos *
refTracker:ObjectReferenceTracker -> unit
override InitializeTask :
connections:Connections *
variableDispenser:VariableDispenser *
events:IDTSInfoEvents *
log:IDTSLogging *
eventInfos:EventInfos *
logEntryInfos:LogEntryInfos *
refTracker:ObjectReferenceTracker -> unit
public override function InitializeTask(
connections : Connections,
variableDispenser : VariableDispenser,
events : IDTSInfoEvents,
log : IDTSLogging,
eventInfos : EventInfos,
logEntryInfos : LogEntryInfos,
refTracker : ObjectReferenceTracker
)
參數
- connections
型別：Microsoft.SqlServer.Dts.Runtime.Connections
A Connections collection for the task.
- variableDispenser
型別：Microsoft.SqlServer.Dts.Runtime.VariableDispenser
A VariableDispenser object for locking variables.
- events
型別：Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents
An object that implements the IDTSInfoEvents interface for receiving events.
- log
型別：Microsoft.SqlServer.Dts.Runtime.IDTSLogging
An object that implements the IDTSLogging interface for logging events.
- eventInfos
型別：Microsoft.SqlServer.Dts.Runtime.EventInfos
A EventInfos object.
- logEntryInfos
型別：Microsoft.SqlServer.Dts.Runtime.LogEntryInfos
A LogEntryInfos object.
- refTracker
型別：Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker
An ObjectReferenceTracker object.
備註
For the WmiDataReaderTask and all other stock tasks, this method is used to set the log events of each task. The Integration Services run-time engine calls this method immediately after the task is created, and before validation, execution, or persistence operations.
範例
Task developers define custom events by overriding the InitializeTask method of the Task base class, and creating a new EventInfo. The following code sample shows the InitializeTask method of a custom task, where two custom events are created, and added to the eventInfos collection.
public override void InitializeTask(Connections connections, VariableDispenser variables, IDTSInfoEvents events, IDTSLogging log, EventInfos eventInfos, LogEntryInfos logEntryInfos, ObjectReferenceTracker refTracker)
{
this.eventInfos = eventInfos;
string[] paramNames = new string[1];
TypeCode[] paramTypes = new TypeCode[1]{TypeCode.Int32};
string[] paramDescriptions = new string[1];
paramNames[0] = "InitialValue";
paramDescriptions[0] = "The value before increment.";
this.eventInfos.Add("OnBeforeIncrement","Fires before the task increments the value.",true,paramNames,paramTypes,paramDescriptions);
this.onBeforeIncrement = this.eventInfos["OnBeforeIncrement"];
paramDescriptions[0] = "The value after increment.";
this.eventInfos.Add("OnAfterIncrement","Fires after the initial value is updated.",true,paramNames, paramTypes,paramDescriptions);
this.onAfterIncrement = this.eventInfos["OnAfterIncrement"];
}