ScriptComponent.ReadOnlyVariables Property

Статья
12/15/2008

Returns the collection of ReadOnlyVariables available to the component.

Пространство имен: Microsoft.SqlServer.Dts.Pipeline
Сборка: Microsoft.SqlServer.TxScript (in microsoft.sqlserver.txscript.dll)

Синтаксис

'Декларация
Public ReadOnly Property ReadOnlyVariables As IDTSVariables90

public IDTSVariables90 ReadOnlyVariables { get; }

public:
property IDTSVariables90^ ReadOnlyVariables {
    IDTSVariables90^ get ();
}

/** @property */
public IDTSVariables90 get_ReadOnlyVariables ()

public function get ReadOnlyVariables () : IDTSVariables90

Значение свойства

An IDTSVariables90 that contains the collection of ReadOnlyVariables.

Замечания

The Script component developer makes variables available to the Script component for read-only access by listing them in the ReadOnlyVariables field in the Script Transformation Component Editor.

The Script component developer does not use the ScriptComponent class directly, but indirectly, by coding the methods and properties of the ScriptMain class, which inherits from ScriptComponent through the UserComponent class.

The developer does not have to use the ReadOnlyVariables property, because the ScriptMain class provides the Variables property for convenient access to both read-only and read/write variables through a single property. The Variables property is a property of the autogenerated UserComponent base class, not of the ScriptComponent class.

Пример

The following code sample demonstrates how the Script component developer might use the ReadOnlyVariables and ReadWriteVariables properties.

  Dim localInteger As Integer
  Dim localString As String

  If Me.ReadOnlyVariables.Contains("MyIntegerVariable") Then
    localInteger = CType(Me.ReadOnlyVariables("MyIntegerVariable").Value, Integer)
  End If

  If Me.ReadWriteVariables.Contains("MyStringVariable") Then
    Me.ReadWriteVariables("MyStringVariable").Value = localString
  End If

Синхронизация потоков

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.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

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