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AppDomain.Id Property

Gets an integer that uniquely identifies the application domain within the process.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

Public ReadOnly Property Id As Integer

Property Value

Type: System.Int32
An integer that identifies the application domain.

The following code example creates a second application domain and displays information about the default domain and the new domain.

Imports System
Imports System.Reflection

Public Class Example

    ' The following attribute indicates to the loader that assemblies 
    ' in the global assembly cache should be shared across multiple
    ' application domains.
    <LoaderOptimizationAttribute(LoaderOptimization.MultiDomainHost)> _
    Public Shared Sub Main() 
        ' Show information for the default application domain.

        ' Create a new application domain and display its information.
        Dim newDomain As AppDomain = AppDomain.CreateDomain("MyMultiDomain")
        newDomain.DoCallBack(AddressOf ShowDomainInfo)

    End Sub 'Main

    ' This method has the same signature as the CrossAppDomainDelegate,
    ' so that it can be executed easily in the new application domain.
    Public Shared Sub ShowDomainInfo() 
        Dim ad As AppDomain = AppDomain.CurrentDomain
        Console.WriteLine("FriendlyName: {0}", ad.FriendlyName)
        Console.WriteLine("Id: {0}", ad.Id)
        Console.WriteLine("IsDefaultAppDomain: {0}", ad.IsDefaultAppDomain())

    End Sub 
End Class

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.