AppDomain.SetShadowCopyPath(String) Method

Definition

Namespace:

System

Assembly:

System.Runtime.dll

Source:

AppDomain.cs

Caution

AppDomain.SetShadowCopyPath has been deprecated and is not supported.

Establishes the specified directory path as the location of assemblies to be shadow copied.

public:
 void SetShadowCopyPath(System::String ^ path);

[System.Obsolete("AppDomain.SetShadowCopyPath has been deprecated and is not supported.")]
public void SetShadowCopyPath (string? path);

[<System.Obsolete("AppDomain.SetShadowCopyPath has been deprecated and is not supported.")>]
member this.SetShadowCopyPath : string -> unit

Public Sub SetShadowCopyPath (path As String)

Parameters

path

String

A list of directory names, where each name is separated by a semicolon.

Attributes

ObsoleteAttribute

Exceptions

AppDomainUnloadedException

The operation is attempted on an unloaded application domain.

Examples

This method is now obsolete, and should not be used for new development.

using namespace System;
using namespace System::Security::Policy;

//for evidence Object*
int main()
{
   AppDomainSetup^ setup = gcnew AppDomainSetup;
   
   // Shadow copying will not work unless the application has a name.
   setup->ApplicationName = "MyApplication";
   
   //Create evidence for the new application domain from evidence of
   // current application domain.
   Evidence^ adevidence = AppDomain::CurrentDomain->Evidence;
   
   // Create a new application domain.
   AppDomain^ domain = AppDomain::CreateDomain( "MyDomain", adevidence, setup );
   
   // MyAssembly.dll is located in the Assemblies subdirectory.
   domain->AppendPrivatePath( "Assemblies" );
   
   // MyOtherAssembly.dll and MyThirdAssembly.dll are located in the
   // MoreAssemblies subdirectory.
   domain->AppendPrivatePath( "MoreAssemblies" );
   
   // Display the relative search path.
   Console::WriteLine( "RelativeSearchPath: {0}", domain->RelativeSearchPath );
   
   // Because Load returns an Assembly Object*, the assemblies must be
   // loaded into the current domain as well. This will fail unless the
   // current domain also has these directories in its search path.
   AppDomain::CurrentDomain->AppendPrivatePath( "Assemblies" );
   AppDomain::CurrentDomain->AppendPrivatePath( "MoreAssemblies" );
   
   // Save shadow copies to C:\Cache
   domain->SetCachePath( "C:\\Cache" );
   
   // Shadow copy only the assemblies in the Assemblies directory.
   domain->SetShadowCopyPath( String::Concat( domain->BaseDirectory, "Assemblies" ) );
   
   // Turn shadow copying on.
   domain->SetShadowCopyFiles();
   
   // This will be copied.
   // You must supply a valid fully qualified assembly name here.
   domain->Load( "Assembly1 text name, Version, Culture, PublicKeyToken" );
   
   // This will not be copied.
   // You must supply a valid fully qualified assembly name here.
   domain->Load( "Assembly2 text name, Version, Culture, PublicKeyToken" );
   
   // When the shadow copy path is cleared, the CLR will make shadow copies
   // of all private assemblies.
   domain->ClearShadowCopyPath();
   
   // MoreAssemblies\MyThirdAssembly.dll should be shadow copied this time.
   // You must supply a valid fully qualified assembly name here.
   domain->Load( "Assembly3 text name, Version, Culture, PublicKeyToken" );
   
   // Unload the domain.
   AppDomain::Unload( domain );
}

using System;
using System.Security.Policy;
namespace AppDomainSnippets
{
    class ADShadowCopy
    {
        static void Main(string[] args)
        {

            AppDomainSetup setup = new AppDomainSetup();
            // Shadow copying will not work unless the application has a name.
            setup.ApplicationName = "MyApplication";

            //Create evidence for the new application domain from evidence of
            // current application domain.
            Evidence adevidence = AppDomain.CurrentDomain.Evidence;
            
            // Create a new application domain.
            AppDomain domain = AppDomain.CreateDomain("MyDomain", adevidence, setup);
            
            // MyAssembly.dll is located in the Assemblies subdirectory.
            domain.AppendPrivatePath("Assemblies");
            // MyOtherAssembly.dll and MyThirdAssembly.dll are located in the
            // MoreAssemblies subdirectory.
            domain.AppendPrivatePath("MoreAssemblies");
            // Display the relative search path.
            Console.WriteLine("RelativeSearchPath: " + domain.RelativeSearchPath);
            // Because Load returns an Assembly object, the assemblies must be
            // loaded into the current domain as well. This will fail unless the
            // current domain also has these directories in its search path.
            AppDomain.CurrentDomain.AppendPrivatePath("Assemblies");
            AppDomain.CurrentDomain.AppendPrivatePath("MoreAssemblies");
            
            // Save shadow copies to C:\Cache
            domain.SetCachePath("C:\\Cache");
            // Shadow copy only the assemblies in the Assemblies directory.
            domain.SetShadowCopyPath(domain.BaseDirectory + "Assemblies");
            // Turn shadow copying on.
            domain.SetShadowCopyFiles();
            
            // This will be copied.
            // You must supply a valid fully qualified assembly name here.
            domain.Load("Assembly1 text name, Version, Culture, PublicKeyToken");
            // This will not be copied.
            // You must supply a valid fully qualified assembly name here.
            domain.Load("Assembly2 text name, Version, Culture, PublicKeyToken");
            
            // When the shadow copy path is cleared, the CLR will make shadow copies
            // of all private assemblies.
            domain.ClearShadowCopyPath();
            // MoreAssemblies\MyThirdAssembly.dll should be shadow copied this time.
            // You must supply a valid fully qualified assembly name here.
            domain.Load("Assembly3 text name, Version, Culture, PublicKeyToken");
            
            // Unload the domain.
            AppDomain.Unload(domain);
        }
    }
}

open System

let setup = AppDomainSetup()
// Shadow copying will not work unless the application has a name.
setup.ApplicationName <- "MyApplication"

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

// Create a new application domain.
let domain = AppDomain.CreateDomain("MyDomain", adevidence, setup)

// MyAssembly.dll is located in the Assemblies subdirectory.
domain.AppendPrivatePath "Assemblies"
// MyOtherAssembly.dll and MyThirdAssembly.dll are located in the
// MoreAssemblies subdirectory.
domain.AppendPrivatePath "MoreAssemblies"
// Display the relative search path.
printfn $"RelativeSearchPath: {domain.RelativeSearchPath}"
// Because Load returns an Assembly object, the assemblies must be
// loaded into the current domain as well. This will fail unless the
// current domain also has these directories in its search path.
AppDomain.CurrentDomain.AppendPrivatePath "Assemblies"
AppDomain.CurrentDomain.AppendPrivatePath "MoreAssemblies"

// Save shadow copies to C:\Cache
domain.SetCachePath "C:\\Cache"
// Shadow copy only the assemblies in the Assemblies directory.
domain.SetShadowCopyPath(domain.BaseDirectory + "Assemblies")
// Turn shadow copying on.
domain.SetShadowCopyFiles()

// This will be copied.
// You must supply a valid fully qualified assembly name here.
domain.Load "Assembly1 text name, Version, Culture, PublicKeyToken" |> ignore
// This will not be copied.
// You must supply a valid fully qualified assembly name here.
domain.Load "Assembly2 text name, Version, Culture, PublicKeyToken" |> ignore

// When the shadow copy path is cleared, the CLR will make shadow copies
// of all private assemblies.
domain.ClearShadowCopyPath()
// MoreAssemblies\MyThirdAssembly.dll should be shadow copied this time.
// You must supply a valid fully qualified assembly name here.
domain.Load "Assembly3 text name, Version, Culture, PublicKeyToken" |> ignore

// Unload the domain.
AppDomain.Unload domain

Imports System.Security.Policy
 'for evidence object

Class ADShadowCopy
   
   'Entry point which delegates to C-style main Private Function
   ' Public Overloads Shared Sub Main()
    '  Main(System.Environment.GetCommandLineArgs())
   ' End Sub
   
   Public Overloads Shared Sub Main(args() As String)
      
      Dim setup As New AppDomainSetup()
      ' Shadow copying will not work unless the application has a name.
      setup.ApplicationName = "MyApplication"
      
      'Create evidence for the new application domain from evidence of
      ' current application domain.
      Dim adevidence As Evidence = AppDomain.CurrentDomain.Evidence
      
      ' Create a new application domain.
      Dim domain As AppDomain = AppDomain.CreateDomain("MyDomain", adevidence, setup)
      
      ' MyAssembly.dll is located in the Assemblies subdirectory.
      domain.AppendPrivatePath("Assemblies")
      ' MyOtherAssembly.dll and MyThirdAssembly.dll are located in the
      ' MoreAssemblies subdirectory.
      domain.AppendPrivatePath("MoreAssemblies")
      ' Display the relative search path.
      Console.WriteLine(("RelativeSearchPath: " + domain.RelativeSearchPath))
      ' Because Load returns an Assembly object, the assemblies must be
      ' loaded into the current domain as well. This will fail unless the
      ' current domain also has these directories in its search path.
      AppDomain.CurrentDomain.AppendPrivatePath("Assemblies")
      AppDomain.CurrentDomain.AppendPrivatePath("MoreAssemblies")
      
      ' Save shadow copies to C:\Cache
      domain.SetCachePath("C:\Cache")
      ' Shadow copy only the assemblies in the Assemblies directory.
      domain.SetShadowCopyPath((domain.BaseDirectory + "Assemblies"))
      ' Turn shadow copying on.
      domain.SetShadowCopyFiles()
      
      ' This will be copied.
      ' You must supply a valid fully qualified assembly name here. 
      domain.Load("Assembly1 text name, Version, Culture, PublicKeyToken")
      ' This will not be copied.
      ' You must supply a valid fully qualified assembly name here. 
      domain.Load("Assembly2 text name, Version, Culture, PublicKeyToken")
      
      ' When the shadow copy path is cleared, the CLR will make shadow copies
      ' of all private assemblies.
      domain.ClearShadowCopyPath()
      ' MoreAssemblies\MyThirdAssembly.dll should be shadow copied this time.
      ' You must supply a valid fully qualified assembly name here.
      domain.Load("Assembly3 text name, Version, Culture, PublicKeyToken")
      
      ' Unload the domain.
      AppDomain.Unload(domain)
   End Sub
End Class

Remarks

By default, a shadow copy includes all assemblies found through probing. The SetShadowCopyPath method restricts the shadow copy to the assemblies in the directories specified by path.

The SetShadowCopyPath method does not specify additional directories to be searched for assemblies. Assemblies to be shadow-copied must already be located in the search path, for example under BaseDirectory. The SetShadowCopyPath method specifies which search paths are eligible to be shadow-copied.

This method sets the ShadowCopyDirectories property of the internal AppDomainSetup associated with this instance.

For more information on shadow copying, see Shadow Copying Assemblies.

See also

• Shadow Copying Assemblies