ForEachEnumerator 类
Enumerates over the items that the ForEachLoop is assigned to iterate over.
继承层次结构
System. . :: . .Object
Microsoft.SqlServer.Dts.Runtime. . :: . .DtsObject
Microsoft.SqlServer.Dts.Runtime..::..ForEachEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.ADO. . :: . .ForEachADOEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.ADO. . :: . .ForEachSchemaRowsetEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar. . :: . .ForEachFromVarEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.Item. . :: . .ForEachItemEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.NodeList. . :: . .ForEachNodeListEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO. . :: . .ForEachSMOEnumerator
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 MustInherit Class ForEachEnumerator _
Inherits DtsObject _
Implements IDTSForEachEnumerator
用法
Dim instance As ForEachEnumerator
public abstract class ForEachEnumerator : DtsObject,
IDTSForEachEnumerator
public ref class ForEachEnumerator abstract : public DtsObject,
IDTSForEachEnumerator
[<AbstractClassAttribute>]
type ForEachEnumerator =
class
inherit DtsObject
interface IDTSForEachEnumerator
end
public abstract class ForEachEnumerator extends DtsObject implements IDTSForEachEnumerator
ForEachEnumerator 类型公开以下成员。
属性
名称 | 说明 | |
---|---|---|
CollectionEnumerator | Gets or sets Boolean that indicates if the foreach loop enumerator is enumerating collections of objects or enumerating collections of collections. | |
Version | Returns the version number of the package. This property is read-only. |
页首
方法
名称 | 说明 | |
---|---|---|
CanUpdate | A Boolean that indicates if the new package XML can update the old package XML. | |
Equals | Determines whether two object instances are equal. (从 DtsObject 继承。) | |
Finalize | (从 Object 继承。) | |
GetEnumerator | Returns a managed enumerator, IEnumerator, for iterating over the collections. | |
GetHashCode | Returns the hash code for this instance. (从 DtsObject 继承。) | |
GetType | (从 Object 继承。) | |
InitializeForEachEnumerator | Initializes the properties associated with the task. This method is called by the runtime and is not used in code. | |
MemberwiseClone | (从 Object 继承。) | |
ToString | (从 Object 继承。) | |
Update | This method updates the old package XML with the new package XML if CanUpdate is set to true. | |
Validate | Allows the container to determine if it contains invalid settings that will prevent it from executing successfully. |
页首
注释
This class provides the abstract (MustInherit in Visual Basic) base class for enumerators over the foreach loop collection. Inherits from DtsObject and IDTSForEachEnumerator.
线程安全
此类型的任何公共 static(在 Visual Basic 中为 Shared) 成员都是线程安全的。不保证所有实例成员都是线程安全的。