CanUpdate 方法
*** Member deprecated; see Remarks. *** 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（在 Microsoft.SqlServer.ManagedDTS.dll 中）
语法
声明
Public Overridable Function CanUpdate ( _
CreationName As String _
) As Boolean
用法
Dim instance As Task
Dim CreationName As String
Dim returnValue As Boolean
returnValue = instance.CanUpdate(CreationName)
public virtual bool CanUpdate(
string CreationName
)
public:
virtual bool CanUpdate(
String^ CreationName
)
abstract CanUpdate :
CreationName:string -> bool
override CanUpdate :
CreationName:string -> bool
public function CanUpdate(
CreationName : String
) : boolean
参数
- CreationName
类型：System. . :: . .String
A String that contains the unique identifier of the old package.
返回值
类型：System. . :: . .Boolean
A Boolean that indicates whether the new package XML can update the old XML.
注释
.gif "注意") 注意 |
|---|
This member will be removed in a future version of Microsoft SQL Server. Avoid using this member in new development work, and plan to modify applications that currently use this member. |
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.