AppDomain.SetShadowCopyFiles Method

Definition

Caution

AppDomain.SetShadowCopyFiles has been deprecated and is not supported.

Caution

AppDomain.SetShadowCopyFiles has been deprecated. Please investigate the use of AppDomainSetup.ShadowCopyFiles instead. https://go.microsoft.com/fwlink/?linkid=14202

Caution

AppDomain.SetShadowCopyFiles has been deprecated. Please investigate the use of AppDomainSetup.ShadowCopyFiles instead. http://go.microsoft.com/fwlink/?linkid=14202

Turns on shadow copying.

C#
[System.Obsolete("AppDomain.SetShadowCopyFiles has been deprecated and is not supported.")]
public void SetShadowCopyFiles();
C#
[System.Obsolete("AppDomain.SetShadowCopyFiles has been deprecated. Please investigate the use of AppDomainSetup.ShadowCopyFiles instead. https://go.microsoft.com/fwlink/?linkid=14202")]
public void SetShadowCopyFiles();
C#
[System.Obsolete("AppDomain.SetShadowCopyFiles has been deprecated. Please investigate the use of AppDomainSetup.ShadowCopyFiles instead. http://go.microsoft.com/fwlink/?linkid=14202")]
public void SetShadowCopyFiles();
C#
public void SetShadowCopyFiles();
C#
[System.Obsolete("AppDomain.SetShadowCopyFiles has been deprecated. Please investigate the use of AppDomainSetup.ShadowCopyFiles instead. http://go.microsoft.com/fwlink/?linkid=14202")]
[System.Security.SecurityCritical]
public void SetShadowCopyFiles();
Attributes

Exceptions

The operation is attempted on an unloaded application domain.

Examples

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

C#
using System;
using System.Security.Policy;
namespace AppDomainSnippets
{
    class ADProperties
    {
        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();
            Console.WriteLine("ShadowCopyFiles turned on: " + domain.ShadowCopyFiles);

            // 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);
        }
    }
}

Remarks

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

Applies to

Product Versions (Obsolete)
.NET (Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10)
.NET Framework 1.1 (2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1)
.NET Standard (2.0, 2.1)

See also