AppDomain.BaseDirectory Property

Definition

Namespace:

System

Assembly:

System.Runtime.dll

Source:

AppDomain.cs

Gets the base directory that the assembly resolver uses to probe for assemblies.

public:
 property System::String ^ BaseDirectory { System::String ^ get(); };

public string BaseDirectory { get; }

member this.BaseDirectory : string

Public ReadOnly Property BaseDirectory As String

Property Value

String

The base directory that the assembly resolver uses to probe for assemblies.

Exceptions

AppDomainUnloadedException

The operation is attempted on an unloaded application domain.

Examples

The following code example creates a new application domain, specifying a base directory to use when searching for assemblies to load into the domain. The example then uses the BaseDirectory property to obtain the base directory path, for display to the console.

using namespace System;
using namespace System::IO;
using namespace System::Reflection;
using namespace System::Security::Policy;    // For Evidence object.

int main()
{
   
   // Create application domain setup information
   AppDomainSetup^ domaininfo = gcnew AppDomainSetup;
   domaininfo->ConfigurationFile = String::Format("{0}{1}ADSetup.exe.config", 
                                                  Environment::CurrentDirectory,
                                                  Path::DirectorySeparatorChar);
   domaininfo->ApplicationBase = String::Format("{0}", System::Environment::CurrentDirectory);
   
   //Create evidence for the new appdomain from evidence of the current application domain
   Evidence^ adevidence = AppDomain::CurrentDomain->Evidence;
   
   // Create appdomain
   AppDomain^ domain = AppDomain::CreateDomain("Domain2", adevidence, domaininfo);
   
   // Display application domain information
   Console::WriteLine("Host domain: {0}", AppDomain::CurrentDomain->FriendlyName);
   Console::WriteLine("Child domain: {0}", domain->FriendlyName);
   Console::WriteLine();
   Console::WriteLine("Configuration file: {0}", domain->SetupInformation->ConfigurationFile);
   Console::WriteLine( "Application Base Directory: {0}", domain->BaseDirectory);
   
   AppDomain::Unload(domain);
}
// The example displays output like the following:
//    Host domain: adsetup.exe
//    Child domain: Domain2
//    
//    Configuration file: C:\Test\ADSetup.exe.config
//    Application Base Directory: C:\Test

using System;
using System.IO;
using System.Reflection;
using System.Security.Policy;

class ADSetupSnippet
{
    public static void Main()
    {
        // Create application domain setup information
        var domaininfo = new AppDomainSetup();
        domaininfo.ConfigurationFile = Path.Combine(System.Environment.CurrentDirectory, "ADSetup.exe.config");
        domaininfo.ApplicationBase = System.Environment.CurrentDirectory;

        //Create evidence for the new appdomain from evidence of the current application domain
        Evidence adEvidence = AppDomain.CurrentDomain.Evidence;

        // Create appdomain
        AppDomain domain = AppDomain.CreateDomain("Domain2", adEvidence, domaininfo);

        // Display application domain information.
        Console.WriteLine("Host domain: " + AppDomain.CurrentDomain.FriendlyName);
        Console.WriteLine("Child domain: " + domain.FriendlyName);
        Console.WriteLine();
        Console.WriteLine("Configuration file: " + domain.SetupInformation.ConfigurationFile);
        Console.WriteLine("Application Base Directory: " + domain.BaseDirectory);

        AppDomain.Unload(domain);
    }
}
// The example displays output like the following:
//    Host domain: adsetup.exe
//    Child domain: Domain2
//
//    Configuration file: C:\Test\ADSetup.exe.config
//    Application Base Directory: C:\Test

open System
open System.IO

// Create application domain setup information
let domaininfo = AppDomainSetup()
domaininfo.ConfigurationFile <- Environment.CurrentDirectory + string Path.DirectorySeparatorChar + "ADSetup.exe.config"
domaininfo.ApplicationBase <- Environment.CurrentDirectory

//Create evidence for the new appdomain from evidence of the current application domain
let adEvidence = AppDomain.CurrentDomain.Evidence

// Create appdomain
let domain = AppDomain.CreateDomain("Domain2", adEvidence, domaininfo)

// Display application domain information.
printfn $"Host domain: {AppDomain.CurrentDomain.FriendlyName}"
printfn $"Child domain: {domain.FriendlyName}\n"
printfn $"Configuration file: {domain.SetupInformation.ConfigurationFile}"
printfn $"Application Base Directory: {domain.BaseDirectory}"

AppDomain.Unload domain
// The example displays output like the following:
//    Host domain: adsetup.exe
//    Child domain: Domain2
//
//    Configuration file: C:\Test\ADSetup.exe.config
//    Application Base Directory: C:\Test

Imports System.IO
Imports System.Reflection
Imports System.Security.Policy

Module Example
   Public Sub Main()
      ' Create the application domain setup information.
      Dim domaininfo As New AppDomainSetup()
        domaininfo.ConfigurationFile = Path.Combine(Environment.CurrentDirectory, "ADSetup.exe.config")
      domaininfo.ApplicationBase = Environment.CurrentDirectory
      
      'Create evidence for the new appdomain from evidence of the current application domain.
      Dim adEvidence As Evidence = AppDomain.CurrentDomain.Evidence
      
      ' Create appdomain.
      Dim domain As AppDomain = AppDomain.CreateDomain("Domain2", adevidence, domaininfo)
      
      ' Display the application domain information.
      Console.WriteLine(("Host domain: " + AppDomain.CurrentDomain.FriendlyName))
      Console.WriteLine(("Child domain: " + domain.FriendlyName))
      Console.WriteLine()
      Console.WriteLine(("Configuration file: " + domain.SetupInformation.ConfigurationFile))
      Console.WriteLine(("Application Base Directory: " + domain.BaseDirectory))
     
      AppDomain.Unload(domain)
   End Sub 
End Module 
' The example displays output like the following:
'    Host domain: adsetup.exe
'    Child domain: Domain2
'    
'    Configuration file: C:\Test\ADSetup.exe.config
'    Application Base Directory: C:\Test

Remarks

This property corresponds to the AppDomainSetup.ApplicationBase property. It can also be retrieved using the GetData method with the string "APPBASE".

See also

• ApplicationBase