通过

Task.CanUpdate Method

  • 项目

A Boolean that indicates whether the new package XML can update the old package XML.

命名空间: Microsoft.SqlServer.Dts.Runtime
程序集: Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)

语法

声明
Public Overridable Function CanUpdate ( _
    CreationName As String _
) As Boolean

public virtual bool CanUpdate (
    string CreationName
)

public:
virtual bool CanUpdate (
    String^ CreationName
)

public boolean CanUpdate (
    String CreationName
)

public function CanUpdate (
    CreationName : String
) : boolean

参数

  • CreationName
    A String that contains the unique identifier of the old package.

返回值

A Boolean that indicates whether the new package XML can update the old XML.

备注

The run-time engine calls CanUpdate on new objects, passing in the GUID of the old object. If the new object can update the old object, the old object is passed to the new one through the Update method, where the XML is changed.

By default, all extensible objects implement CanUpdate to return false, and implement the Update method to do nothing on the XML it is given in its parameters.

线程安全

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

请参阅

参考

Task Class
Task Members
Microsoft.SqlServer.Dts.Runtime Namespace