AppDomain.IsDefaultAppDomain Method

Returns a value that indicates whether the application domain is the default application domain for the process.

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

public bool IsDefaultAppDomain()

Return Value

Type: System.Boolean
true if the current AppDomain object represents the default application domain for the process; otherwise, false.

Every managed process has a default application domain. Execution begins in the default domain.

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


using System;
using 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 static void Main()
    {
        // Show information for the default application domain.
        ShowDomainInfo();

        // Create a new application domain and display its information.
        AppDomain newDomain = AppDomain.CreateDomain("MyMultiDomain");
        newDomain.DoCallBack(new CrossAppDomainDelegate(ShowDomainInfo));
    }

    // This method has the same signature as the CrossAppDomainDelegate,
    // so that it can be executed easily in the new application domain.
    // 
    public static void ShowDomainInfo()
    {
        AppDomain ad = AppDomain.CurrentDomain;
        Console.WriteLine();
        Console.WriteLine("FriendlyName: {0}", ad.FriendlyName);
        Console.WriteLine("Id: {0}", ad.Id);
        Console.WriteLine("IsDefaultAppDomain: {0}", ad.IsDefaultAppDomain());
    }
}


.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.
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