SynchronizationAttribute Class
Sets the synchronization value of the component. This class cannot be inherited.
Assembly: System.EnterpriseServices (in System.EnterpriseServices.dll)
Both transaction and just-in-time (JIT) activation enable synchronization automatically.
For more information about using attributes, see Extending Metadata Using Attributes.
Applying SynchronizationAttribute to a context-bound object results in the creation of a wait handle and auto reset event, which are not deterministically garbage collected. Therefore, you should not create a large number of context-bound objects marked with the SynchronizationAttribute within a short time period.
The following code example demonstrates the use of the SynchronizationAttribute type.
Imports System Imports System.EnterpriseServices Imports System.Reflection ' References: ' System.EnterpriseServices ' This is equivalent to [Synchronization(SynchronizationOption.Required)]. <Synchronization()> _ Public Class SynchronizationAttribute_Ctor Inherits ServicedComponent End Class 'SynchronizationAttribute_Ctor <Synchronization(SynchronizationOption.Disabled)> _ Public Class SynchronizationAttribute_Ctor_SynchronizationOption Inherits ServicedComponent End Class 'SynchronizationAttribute_Ctor_SynchronizationOption <Synchronization(SynchronizationOption.RequiresNew)> _ Public Class SynchronizationAttribute_Value Inherits ServicedComponent Public Sub ValueExample() ' Get the SynchronizationAttribute applied to the class. Dim attribute As SynchronizationAttribute = CType(Attribute.GetCustomAttribute(Me.GetType(), GetType(SynchronizationAttribute), False), SynchronizationAttribute) ' Display the value of the attribute's Value property. MsgBox("SynchronizationAttribute.Value: " & attribute.Value) End Sub 'ValueExample End Class 'SynchronizationAttribute_Value
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.