DataAsyncCommandEvents 构造函数 (DataAsyncCommandStartEventHandler, DataAsyncCommandFailureEventHandler, DataAsyncCommandCancelEventHandler, DataAsyncCommandEndEventHandler)

初始化 DataAsyncCommandEvents 选件类的新实例使用指定的委托的。

命名空间：  Microsoft.VisualStudio.Data
程序集：  Microsoft.VisualStudio.Data（在 Microsoft.VisualStudio.Data.dll 中）

语法

声明
Public Sub New ( _
    commandStart As DataAsyncCommandStartEventHandler, _
    commandFailure As DataAsyncCommandFailureEventHandler, _
    commandCancel As DataAsyncCommandCancelEventHandler, _
    commandEnd As DataAsyncCommandEndEventHandler _
)

public DataAsyncCommandEvents(
    DataAsyncCommandStartEventHandler commandStart,
    DataAsyncCommandFailureEventHandler commandFailure,
    DataAsyncCommandCancelEventHandler commandCancel,
    DataAsyncCommandEndEventHandler commandEnd
)

public:
DataAsyncCommandEvents(
    DataAsyncCommandStartEventHandler^ commandStart, 
    DataAsyncCommandFailureEventHandler^ commandFailure, 
    DataAsyncCommandCancelEventHandler^ commandCancel, 
    DataAsyncCommandEndEventHandler^ commandEnd
)

new : 
        commandStart:DataAsyncCommandStartEventHandler * 
        commandFailure:DataAsyncCommandFailureEventHandler * 
        commandCancel:DataAsyncCommandCancelEventHandler * 
        commandEnd:DataAsyncCommandEndEventHandler -> DataAsyncCommandEvents

public function DataAsyncCommandEvents(
    commandStart : DataAsyncCommandStartEventHandler, 
    commandFailure : DataAsyncCommandFailureEventHandler, 
    commandCancel : DataAsyncCommandCancelEventHandler, 
    commandEnd : DataAsyncCommandEndEventHandler
)

参数

• commandStart
  类型：Microsoft.VisualStudio.Data.DataAsyncCommandStartEventHandler
  调用命令时要使用的委托启动。

• commandFailure
  类型：Microsoft.VisualStudio.Data.DataAsyncCommandFailureEventHandler
  时调用的委托具有命令失败。

• commandCancel
  类型：Microsoft.VisualStudio.Data.DataAsyncCommandCancelEventHandler
  调用命令时要使用的委托中移除。

• commandEnd
  类型：Microsoft.VisualStudio.Data.DataAsyncCommandEndEventHandler
  调用命令时要使用的委托关闭。

.NET Framework 安全性

• 对直接调用方的完全信任。此成员不能由部分信任的代码使用。有关更多信息，请参见通过部分受信任的代码使用库。

请参见

参考

DataAsyncCommandEvents 类

DataAsyncCommandEvents 重载

Microsoft.VisualStudio.Data 命名空间

DataAsyncCommandStartEventHandler

DataAsyncCommandFailureEventHandler

DataAsyncCommandCancelEventHandler

DataAsyncCommandEndEventHandler