Класс ForEachFromVarEnumerator
This enumerator is used to loop over the objects that are in the variable specified in VariableName.
Иерархия наследования
System.Object
Microsoft.SqlServer.Dts.Runtime.DtsObject
Microsoft.SqlServer.Dts.Runtime.ForEachEnumerator
Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar.ForEachFromVarEnumerator
Пространство имен: Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar
Сборка: Microsoft.SqlServer.ForEachFromVarEnumerator (в Microsoft.SqlServer.ForEachFromVarEnumerator.dll)
Синтаксис
'Декларация
Public NotInheritable Class ForEachFromVarEnumerator _
Inherits ForEachEnumerator _
Implements IDTSComponentPersist, IDTSForEachFromVarEnumerator
'Применение
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
Тип ForEachFromVarEnumerator обеспечивает доступ к следующим элементам.
Конструкторы
Имя | Описание | |
---|---|---|
ForEachFromVarEnumerator | Initializes a new instance of the ForEachFromVarEnumerator class. |
В начало
Свойства
Имя | Описание | |
---|---|---|
CollectionEnumerator | Gets or sets Boolean that indicates if the foreach loop enumerator is enumerating collections of objects or enumerating collections of collections. (Производный от ForEachEnumerator.) | |
VariableName | Gets or sets the name of the variable to enumerate. | |
Version | Returns the version number of the package. This property is read-only. (Производный от ForEachEnumerator.) |
В начало
Методы
Имя | Описание | |
---|---|---|
CanUpdate | A Boolean that indicates if the new package XML can update the old package XML. (Производный от ForEachEnumerator.) | |
Equals | Determines whether two object instances are equal. (Производный от DtsObject.) | |
GetEnumerator | Returns an enumerator that can iterate over the ForEachFromVarEnumerator instance. (Переопределяет ForEachEnumerator.GetEnumerator(Connections, VariableDispenser, IDTSInfoEvents, IDTSLogging).) | |
GetHashCode | Returns the hash code for this instance. (Производный от DtsObject.) | |
GetType | (Производный от Object.) | |
InitializeForEachEnumerator | Initializes the properties associated with the task. This method is called by the runtime and is not used in code. (Производный от ForEachEnumerator.) | |
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 | (Производный от Object.) | |
Update | This method updates the old package XML with the new package XML if CanUpdate is set to true. (Производный от ForEachEnumerator.) | |
Validate | Allows the container to determine if it contains invalid settings that will prevent it from executing successfully. (Производный от ForEachEnumerator.) |
В начало
Замечания
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.
Безопасность многопоточности
Любые открытые статический (Shared в Visual Basic) элементы этого типа потокобезопасны. Потокобезопасность с элементами экземпляров не гарантируется.
См. также
Справочник
Пространство имен Microsoft.SqlServer.Dts.Runtime.Enumerators.FromVar