ForEachFromVarEnumerator 类

This enumerator is used to loop over the objects that are in the variable specified in VariableName.

继承层次结构

System.Object
  Microsoft.SqlServer.Dts.Runtime.DtsObject
    Microsoft.SqlServer.Dts.Runtime.ForEachEnumerator
      Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar.ForEachFromVarEnumerator

命名空间：  Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar
程序集：  Microsoft.SqlServer.ForEachFromVarEnumerator（在 Microsoft.SqlServer.ForEachFromVarEnumerator.dll 中）

语法

声明
Public NotInheritable Class ForEachFromVarEnumerator _
    Inherits ForEachEnumerator _
    Implements IDTSComponentPersist, IDTSForEachFromVarEnumerator
用法
Dim instance As ForEachFromVarEnumerator

public sealed class ForEachFromVarEnumerator : ForEachEnumerator, 
    IDTSComponentPersist, IDTSForEachFromVarEnumerator

public ref class ForEachFromVarEnumerator sealed : public ForEachEnumerator, 
    IDTSComponentPersist, IDTSForEachFromVarEnumerator

[<SealedAttribute>]
type ForEachFromVarEnumerator =  
    class 
        inherit ForEachEnumerator 
        interface IDTSComponentPersist 
        interface IDTSForEachFromVarEnumerator 
    end

public final class ForEachFromVarEnumerator extends ForEachEnumerator implements IDTSComponentPersist, IDTSForEachFromVarEnumerator

ForEachFromVarEnumerator 类型公开以下成员。

构造函数

	名称	说明
	ForEachFromVarEnumerator	Initializes a new instance of the ForEachFromVarEnumerator class.

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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. （从 ForEachEnumerator 继承。）
	VariableName	Gets or sets the name of the variable to enumerate.
	Version	Returns the version number of the package. This property is read-only. （从 ForEachEnumerator 继承。）

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方法

	名称	说明
	CanUpdate	A Boolean that indicates if the new package XML can update the old package XML. （从 ForEachEnumerator 继承。）
	Equals	Determines whether two object instances are equal. （从 DtsObject 继承。）
	GetEnumerator	Returns an enumerator that can iterate over the ForEachFromVarEnumerator instance. （覆盖 ForEachEnumerator.GetEnumerator(Connections, VariableDispenser, IDTSInfoEvents, IDTSLogging)。）
	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. （从 ForEachEnumerator 继承。）
	LoadFromXML	This method is not callable by your application code. To load a package saved as .xml, use the Application.LoadPackage method.
	SaveToXML	This method is not callable by your application code. To save a package as .xml, use the Application.SaveToXml method.
	ToString	（从 Object 继承。）
	Update	This method updates the old package XML with the new package XML if CanUpdate is set to true. （从 ForEachEnumerator 继承。）
	Validate	Allows the container to determine if it contains invalid settings that will prevent it from executing successfully. （从 ForEachEnumerator 继承。）

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注释

An example of the use of this enumerator is when a query is run, and the result of the query is stored in the variable. You can use this enumerator to loop over the query results.

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。

请参阅

参考

Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar 命名空间