AppDomain.ReflectionOnlyGetAssemblies Method

Definition

Namespace:

System

Assembly:

System.Runtime.dll

Source:

AppDomain.cs

Returns the assemblies that have been loaded into the reflection-only context of the application domain.

public:
 cli::array <System::Reflection::Assembly ^> ^ ReflectionOnlyGetAssemblies();

public System.Reflection.Assembly[] ReflectionOnlyGetAssemblies ();

member this.ReflectionOnlyGetAssemblies : unit -> System.Reflection.Assembly[]

Public Function ReflectionOnlyGetAssemblies () As Assembly()

Returns

Assembly[]

An array of Assembly objects that represent the assemblies loaded into the reflection-only context of the application domain.

Exceptions

AppDomainUnloadedException

An operation is attempted on an unloaded application domain.

Examples

The following code example loads the System.dll assembly into the execution context and then into the reflection-only context. The GetAssemblies and ReflectionOnlyGetAssemblies methods are used to display the assemblies loaded into each context.

using namespace System;
using namespace System::Reflection;

#using <System.dll>

using namespace System::Timers;
using namespace System::Collections;
int main()
{
   
   // Get the assembly display name for System.dll, the assembly 
   // that contains System.Timers.Timer. Note that this causes
   // System.dll to be loaded into the execution context.
   //
   String^ displayName = Timer::typeid->Assembly->FullName;
   
   // Load System.dll into the reflection-only context. Note that 
   // if you obtain the display name (for example, by running this
   // example program), and enter it as a literal string in the 
   // preceding line of code, you can load System.dll into the 
   // reflection-only context without loading it into the execution 
   // context.
   Assembly::ReflectionOnlyLoad( displayName );
   
   // Display the assemblies loaded into the execution and 
   // reflection-only contexts. System.dll appears in both contexts.
   //
   Console::WriteLine( L"------------- Execution Context --------------" );
   IEnumerator^ myEnum = AppDomain::CurrentDomain->GetAssemblies()->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Assembly^ a = safe_cast<Assembly^>(myEnum->Current);
      Console::WriteLine( L"\t{0}", a->GetName() );
   }

   Console::WriteLine( L"------------- Reflection-only Context --------------" );
   IEnumerator^ myEnum1 = AppDomain::CurrentDomain->ReflectionOnlyGetAssemblies()->GetEnumerator();
   while ( myEnum1->MoveNext() )
   {
      Assembly^ a = safe_cast<Assembly^>(myEnum1->Current);
      Console::WriteLine( L"\t{0}", a->GetName() );
   }
}

using System;
using System.Reflection;
using System.Timers;

public class ReflectionOnlySnippet
{
    public static void Main()
    {
        // Get the assembly display name for System.dll, the assembly
        // that contains System.Timers.Timer. Note that this causes
        // System.dll to be loaded into the execution context.
        //
        string displayName = typeof(Timer).Assembly.FullName;

        // Load System.dll into the reflection-only context. Note that
        // if you obtain the display name (for example, by running this
        // example program), and enter it as a literal string in the
        // preceding line of code, you can load System.dll into the
        // reflection-only context without loading it into the execution
        // context.
        Assembly.ReflectionOnlyLoad(displayName);

        // Display the assemblies loaded into the execution and
        // reflection-only contexts. System.dll appears in both contexts.
        //
        Console.WriteLine("------------- Execution Context --------------");
        foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies())
        {
            Console.WriteLine("\t{0}", a.GetName());
        }
        Console.WriteLine("------------- Reflection-only Context --------------");
        foreach (Assembly a in AppDomain.CurrentDomain.ReflectionOnlyGetAssemblies())
        {
            Console.WriteLine("\t{0}", a.GetName());
        }
    }
}

open System
open System.Reflection
open System.Timers

// Get the assembly display name for System.dll, the assembly
// that contains System.Timers.Timer. Note that this causes
// System.dll to be loaded into the execution context.
let displayName = typeof<Timer>.Assembly.FullName

// Load System.dll into the reflection-only context. Note that
// if you obtain the display name (for example, by running this
// example program), and enter it as a literal string in the
// preceding line of code, you can load System.dll into the
// reflection-only context without loading it into the execution
// context.
Assembly.ReflectionOnlyLoad displayName |> ignore

// Display the assemblies loaded into the execution and
// reflection-only contexts. System.dll appears in both contexts.
printfn "------------- Execution Context --------------"
for a in AppDomain.CurrentDomain.GetAssemblies() do
    printfn $"\t{a.GetName()}"
printfn "------------- Reflection-only Context --------------"
for a in AppDomain.CurrentDomain.ReflectionOnlyGetAssemblies() do
    printfn $"\t{a.GetName()}"

Imports System.Reflection
Imports System.Timers

Public Class Example
    
    Public Shared Sub Main() 
        ' Get the assembly display name for System.dll, the assembly 
        ' that contains System.Timers.Timer. Note that this causes
        ' System.dll to be loaded into the execution context.
        '
        Dim displayName As String = GetType(Timer).Assembly.FullName
        
        ' Load System.dll into the reflection-only context. Note that 
        ' if you obtain the display name (for example, by running this
        ' example program), and enter it as a literal string in the 
        ' preceding line of code, you can load System.dll into the 
        ' reflection-only context without loading it into the execution 
        ' context.
        Assembly.ReflectionOnlyLoad(displayName)
        
        ' Display the assemblies loaded into the execution and 
        ' reflection-only contexts. System.dll appears in both contexts.
        '
        Dim ad As AppDomain = AppDomain.CurrentDomain
        Console.WriteLine("------------- Execution Context --------------")
        For Each a As Assembly In ad.GetAssemblies()
            Console.WriteLine(vbTab + "{0}", a.GetName())
        Next a
        Console.WriteLine("------------- Reflection-only Context --------------")
        For Each a As Assembly In ad.ReflectionOnlyGetAssemblies()
            Console.WriteLine(vbTab + "{0}", a.GetName())
        Next a
    
    End Sub
End Class

Remarks

This method returns the assemblies that have been loaded into the reflection-only context. To get the assemblies that have been loaded for execution, use the GetAssemblies method.

See also

• GetAssemblies()