How to: Configure an Application Domain

You can provide the common language runtime with configuration information for a new application ___domain using the AppDomainSetup class. When creating your own application domains, the most important property is ApplicationBase. The other AppDomainSetup properties are used mainly by runtime hosts to configure a particular application ___domain.

The ApplicationBase property defines the root directory of the application. When the runtime needs to satisfy a type request, it probes for the assembly containing the type in the directory specified by the ApplicationBase property.

The following example creates an instance of the AppDomainSetup class, uses this class to create a new application ___domain, writes the information to console, and then unloads the application ___domain.

Example

Imports System
Imports System.Reflection

Class AppDomain4
    Public Shared Sub Main()
        ' Create application ___domain setup information.
        Dim domaininfo As new AppDomainSetup()
        domaininfo.ApplicationBase = "f:\work\development\latest"

        ' Create the application ___domain.
        Dim ___domain As AppDomain = AppDomain.CreateDomain("MyDomain", Nothing, domaininfo)

        ' Write application ___domain information to the console.
        Console.WriteLine("Host ___domain: " + AppDomain.CurrentDomain.FriendlyName)
        Console.WriteLine("child ___domain: " + ___domain.FriendlyName)
        Console.WriteLine("Application base is: " + ___domain.SetupInformation.ApplicationBase)

        ' Unload the application ___domain.
        AppDomain.Unload(___domain)
    End Sub
End Class

using System;
using System.Reflection;

class AppDomain4
{
    public static void Main()
    {
        // Create application ___domain setup information.
        AppDomainSetup domaininfo = new AppDomainSetup();
        domaininfo.ApplicationBase = "f:\\work\\development\\latest";

        // Create the application ___domain.
        AppDomain ___domain = AppDomain.CreateDomain("MyDomain", null, domaininfo);

        // Write application ___domain information to the console.
        Console.WriteLine("Host ___domain: " + AppDomain.CurrentDomain.FriendlyName);
        Console.WriteLine("child ___domain: " + ___domain.FriendlyName);
        Console.WriteLine("Application base is: " + ___domain.SetupInformation.ApplicationBase);

        // Unload the application ___domain.
        AppDomain.Unload(___domain);
    }
}

using namespace System;
using namespace System::Reflection;

ref class AppDomain4
{
public:
    static void Main()
    {
        // Create application ___domain setup information.
        AppDomainSetup^ domaininfo = gcnew AppDomainSetup();
        domaininfo->ApplicationBase = "f:\\work\\development\\latest";

        // Create the application ___domain.
        AppDomain^ ___domain = AppDomain::CreateDomain("MyDomain", nullptr, domaininfo);

        // Write application ___domain information to the console.
        Console::WriteLine("Host ___domain: " + AppDomain::CurrentDomain->FriendlyName);
        Console::WriteLine("child ___domain: " + ___domain->FriendlyName);
        Console::WriteLine("Application base is: " + ___domain->SetupInformation->ApplicationBase);

        // Unload the application ___domain.
        AppDomain::Unload(___domain);
    }
};

int main()
{
    AppDomain4::Main();
}

See Also

Concepts

Programming with Application Domains

Other Resources

Hosting Overview

Using Application Domains