AppDomain.Load Método

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

public:
 System::Reflection::Assembly ^ Load(cli::array <System::Byte> ^ rawAssembly);

public:
 virtual System::Reflection::Assembly ^ Load(cli::array <System::Byte> ^ rawAssembly);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")]
public System.Reflection.Assembly Load(byte[] rawAssembly);

public System.Reflection.Assembly Load(byte[] rawAssembly);

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")>]
member this.Load : byte[] -> System.Reflection.Assembly

member this.Load : byte[] -> System.Reflection.Assembly

abstract member Load : byte[] -> System.Reflection.Assembly
override this.Load : byte[] -> System.Reflection.Assembly

Public Function Load (rawAssembly As Byte()) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Atributos

RequiresUnreferencedCodeAttribute

Exceções

Exemplos

O exemplo seguinte demonstra a utilização do carregamento de um conjunto bruto.

Para que este exemplo de código seja executado, deve fornecer o nome de assembleia totalmente qualificado. Para informações sobre como obter o nome de assembleia totalmente qualificado, consulte Nomes de Assembleia.

using namespace System;
using namespace System::IO;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
void InstantiateMyType( AppDomain^ domain )
{
   try
   {
      
      // You must supply a valid fully qualified assembly name here.
      domain->CreateInstance( "Assembly text name, Version, Culture, PublicKeyToken", "MyType" );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}


// Loads the content of a file to a Byte array.
array<Byte>^ loadFile( String^ filename )
{
   FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
   array<Byte>^buffer = gcnew array<Byte>((int)fs->Length);
   fs->Read( buffer, 0, buffer->Length );
   fs->Close();
   return buffer;
}


// Creates a dynamic assembly with symbol information
// and saves them to temp.dll and temp.pdb
void EmitAssembly( AppDomain^ domain )
{
   AssemblyName^ assemblyName = gcnew AssemblyName;
   assemblyName->Name = "MyAssembly";
   AssemblyBuilder^ assemblyBuilder = domain->DefineDynamicAssembly( assemblyName, AssemblyBuilderAccess::Save );
   ModuleBuilder^ moduleBuilder = assemblyBuilder->DefineDynamicModule( "MyModule", "temp.dll", true );
   TypeBuilder^ typeBuilder = moduleBuilder->DefineType( "MyType", TypeAttributes::Public );
   ConstructorBuilder^ constructorBuilder = typeBuilder->DefineConstructor( MethodAttributes::Public, CallingConventions::Standard, nullptr );
   ILGenerator^ ilGenerator = constructorBuilder->GetILGenerator();
   ilGenerator->EmitWriteLine( "MyType instantiated!" );
   ilGenerator->Emit( OpCodes::Ret );
   typeBuilder->CreateType();
   assemblyBuilder->Save( "temp.dll" );
}

ref class Resolver
{
public:
   static Assembly^ MyResolver( Object^ sender, ResolveEventArgs^ args )
   {
      AppDomain^ domain = dynamic_cast<AppDomain^>(sender);
      
      // Once the files are generated, this call is
      // actually no longer necessary.
      EmitAssembly( domain );
      array<Byte>^rawAssembly = loadFile( "temp.dll" );
      array<Byte>^rawSymbolStore = loadFile( "temp.pdb" );
      Assembly^ assembly = domain->Load( rawAssembly, rawSymbolStore );
      return assembly;
   }

};

int main()
{
   AppDomain^ currentDomain = AppDomain::CurrentDomain;
   InstantiateMyType( currentDomain ); // Failed!
   currentDomain->AssemblyResolve += gcnew ResolveEventHandler( Resolver::MyResolver );
   InstantiateMyType( currentDomain ); // OK!
}

using System;
using System.IO;
using System.Reflection;
using System.Reflection.Emit;

class LoadRawSnippet {
   public static void Main() {
      AppDomain currentDomain = AppDomain.CurrentDomain;

      InstantiateMyType(currentDomain);   // Failed!

      currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolver);

      InstantiateMyType(currentDomain);   // OK!
   }

   static void InstantiateMyType(AppDomain domain) {
      try {
     // You must supply a valid fully qualified assembly name here.
         domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyType");
      } catch (Exception e) {
         Console.WriteLine(e.Message);
      }
   }

   // Loads the content of a file to a byte array.
   static byte[] loadFile(string filename) {
      FileStream fs = new FileStream(filename, FileMode.Open);
      byte[] buffer = new byte[(int) fs.Length];
      fs.Read(buffer, 0, buffer.Length);
      fs.Close();

      return buffer;
   }

   static Assembly MyResolver(object sender, ResolveEventArgs args) {
      AppDomain domain = (AppDomain) sender;

      // Once the files are generated, this call is
      // actually no longer necessary.
      EmitAssembly(domain);

      byte[] rawAssembly = loadFile("temp.dll");
      byte[] rawSymbolStore = loadFile("temp.pdb");
      Assembly assembly = domain.Load(rawAssembly, rawSymbolStore);

      return assembly;
   }

   // Creates a dynamic assembly with symbol information
   // and saves them to temp.dll and temp.pdb
   static void EmitAssembly(AppDomain domain) {
      AssemblyName assemblyName = new AssemblyName();
      assemblyName.Name = "MyAssembly";

      AssemblyBuilder assemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Save);
      ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule("MyModule", "temp.dll", true);
      TypeBuilder typeBuilder = moduleBuilder.DefineType("MyType", TypeAttributes.Public);

      ConstructorBuilder constructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, null);
      ILGenerator ilGenerator = constructorBuilder.GetILGenerator();
      ilGenerator.EmitWriteLine("MyType instantiated!");
      ilGenerator.Emit(OpCodes.Ret);

      typeBuilder.CreateType();

      assemblyBuilder.Save("temp.dll");
   }
}

open System
open System.IO
open System.Reflection
open System.Reflection.Emit

let instantiateMyType (domain: AppDomain) =
    try
        // You must supply a valid fully qualified assembly name here.
        domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyType")
        |> ignore  
    with e ->
        printfn $"{e.Message}"

// Loads the content of a file to a byte array.
let loadFile filename =
    use fs = new FileStream(filename, FileMode.Open)
    let buffer = Array.zeroCreate<byte> (int fs.Length)
    fs.Read(buffer, 0, buffer.Length) |> ignore
    fs.Close()
    buffer

// Creates a dynamic assembly with symbol information
// and saves them to temp.dll and temp.pdb
let emitAssembly (domain: AppDomain) =
    let assemblyName = AssemblyName()
    assemblyName.Name <- "MyAssembly"

    let assemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Save)
    let moduleBuilder = assemblyBuilder.DefineDynamicModule("MyModule", "temp.dll", true)
    let typeBuilder = moduleBuilder.DefineType("MyType", TypeAttributes.Public)

    let constructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, null)
    let ilGenerator = constructorBuilder.GetILGenerator()
    ilGenerator.EmitWriteLine "MyType instantiated!"
    ilGenerator.Emit OpCodes.Ret

    typeBuilder.CreateType() |> ignore

    assemblyBuilder.Save "temp.dll"

let myResolver (sender: obj) (args: ResolveEventArgs) =
    let domain = sender :?> AppDomain

    // Once the files are generated, this call is
    // actually no longer necessary.
    emitAssembly domain

    let rawAssembly = loadFile "temp.dll"
    let rawSymbolStore = loadFile "temp.pdb"
    domain.Load(rawAssembly, rawSymbolStore)

let currentDomain = AppDomain.CurrentDomain

instantiateMyType currentDomain   // Failed!

currentDomain.add_AssemblyResolve (ResolveEventHandler myResolver)

instantiateMyType currentDomain   // OK!

Imports System.IO
Imports System.Reflection
Imports System.Reflection.Emit

Module Test
   
   Sub Main()
      Dim currentDomain As AppDomain = AppDomain.CurrentDomain
      
      InstantiateMyType(currentDomain)      ' Failed!

      AddHandler currentDomain.AssemblyResolve, AddressOf MyResolver
      
      InstantiateMyType(currentDomain)      ' OK!
   End Sub
   
   
   Sub InstantiateMyType(domain As AppDomain)
      Try
     ' You must supply a valid fully qualified assembly name here.
         domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyType")
      Catch e As Exception
         Console.WriteLine(e.Message)
      End Try
   End Sub
   
   
   ' Loads the content of a file to a byte array. 
   Function loadFile(filename As String) As Byte()
      Dim fs As New FileStream(filename, FileMode.Open)
      Dim buffer(CInt(fs.Length - 1)) As Byte
      fs.Read(buffer, 0, buffer.Length)
      fs.Close()
      
      Return buffer
   End Function 'loadFile
   
   
   Function MyResolver(sender As Object, args As ResolveEventArgs) As System.Reflection.Assembly
      Dim domain As AppDomain = DirectCast(sender, AppDomain)
      
      ' Once the files are generated, this call is
      ' actually no longer necessary.
      EmitAssembly(domain)
      
      Dim rawAssembly As Byte() = loadFile("temp.dll")
      Dim rawSymbolStore As Byte() = loadFile("temp.pdb")
      Dim myAssembly As System.Reflection.Assembly = domain.Load(rawAssembly, rawSymbolStore)
      
      Return myAssembly
   End Function 'MyResolver
   
   
   ' Creates a dynamic assembly with symbol information
   ' and saves them to temp.dll and temp.pdb
   Sub EmitAssembly(domain As AppDomain)
      Dim assemblyName As New AssemblyName()
      assemblyName.Name = "MyAssembly"
      
      Dim assemblyBuilder As AssemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Save)
      Dim moduleBuilder As ModuleBuilder = assemblyBuilder.DefineDynamicModule("MyModule", "temp.dll", True)
      Dim typeBuilder As TypeBuilder = moduleBuilder.DefineType("MyType", TypeAttributes.Public)
      
      Dim constructorBuilder As ConstructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, Nothing)
      Dim ilGenerator As ILGenerator = constructorBuilder.GetILGenerator()
      ilGenerator.EmitWriteLine("MyType instantiated!")
      ilGenerator.Emit(OpCodes.Ret)
      
      typeBuilder.CreateType()
      
      assemblyBuilder.Save("temp.dll")
   End Sub

End Module 'Test

Observações

Para informações que são comuns a todas as sobrecargas deste método, veja sobrecarga Load(AssemblyName) do método.

A partir do .NET Framework 4, o nível de confiança de um assembly carregado usando este método é o mesmo do nível de confiança do domínio de aplicação.

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

public:
 System::Reflection::Assembly ^ Load(System::Reflection::AssemblyName ^ assemblyRef);

public:
 virtual System::Reflection::Assembly ^ Load(System::Reflection::AssemblyName ^ assemblyRef);

public System.Reflection.Assembly Load(System.Reflection.AssemblyName assemblyRef);

member this.Load : System.Reflection.AssemblyName -> System.Reflection.Assembly

abstract member Load : System.Reflection.AssemblyName -> System.Reflection.Assembly
override this.Load : System.Reflection.AssemblyName -> System.Reflection.Assembly

Public Function Load (assemblyRef As AssemblyName) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Exceções

Observações

Este método deve ser usado apenas para carregar um assembly no domínio de aplicação atual. Este método é fornecido como conveniência para os chamadores de interoperabilidade que não conseguem chamar o método estático Assembly.Load . Para carregar assemblies noutros domínios de aplicação, use um método como CreateInstanceAndUnwrap.

Se uma versão do assembly solicitado já estiver carregada, este método devolve o assembly carregado, mesmo que seja solicitada uma versão diferente.

Não é recomendado fornecer um nome parcial da assembleia.assemblyRef (Um nome parcial omite um ou mais tokens de cultura, versão ou chave pública. Para sobrecargas que usam uma string em vez de um AssemblyName objeto, "MyAssembly, Version=1.0.0.0" é um exemplo de nome parcial e "MyAssembly, Version=1.0.0.0, Culture=neutral, PublicKeyToken=18ab3442da84b47" é um exemplo de nome completo.) Usar nomes parciais tem um efeito negativo no desempenho. Além disso, um nome de montagem parcial só pode carregar um conjunto a partir da cache global de montagem se houver uma cópia exata do assembly no diretório base da aplicação (BaseDirectory ou AppDomainSetup.ApplicationBase).

Se o objeto atual AppDomain representa o domínio Ade aplicação , e o Load método for chamado a partir do domínio Bde aplicação , o assembly é carregado em ambos os domínios de aplicação. Por exemplo, o seguinte código carrega-se MyAssembly no novo domínio ChildDomain de aplicação e também no domínio de aplicação onde o código é executado:

AppDomain^ ad = AppDomain::CreateDomain("ChildDomain");
ad->Load("MyAssembly");

AppDomain ad = AppDomain.CreateDomain("ChildDomain");
ad.Load("MyAssembly");

let ad = AppDomain.CreateDomain "ChildDomain"
ad.Load "MyAssembly"

Dim ad As AppDomain  = AppDomain.CreateDomain("ChildDomain")
ad.Load("MyAssembly")

O assembly é carregado em ambos os domínios porque Assembly não deriva de MarshalByRefObject, e portanto o valor de retorno do Load método não pode ser marshaleado. Em vez disso, o runtime da linguagem comum tenta carregar o assembly no domínio de aplicação que chama. Os assemblies que são carregados nos dois domínios de aplicação podem ser diferentes se as definições de caminho para os dois domínios de aplicação forem diferentes.

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

public:
 System::Reflection::Assembly ^ Load(System::String ^ assemblyString);

public:
 virtual System::Reflection::Assembly ^ Load(System::String ^ assemblyString);

public System.Reflection.Assembly Load(string assemblyString);

member this.Load : string -> System.Reflection.Assembly

abstract member Load : string -> System.Reflection.Assembly
override this.Load : string -> System.Reflection.Assembly

Public Function Load (assemblyString As String) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Exceções

Observações

Para informações que são comuns a todas as sobrecargas deste método, veja sobrecarga Load(AssemblyName) do método.

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

Origem:

AppDomain.cs

public:
 System::Reflection::Assembly ^ Load(cli::array <System::Byte> ^ rawAssembly, cli::array <System::Byte> ^ rawSymbolStore);

public:
 virtual System::Reflection::Assembly ^ Load(cli::array <System::Byte> ^ rawAssembly, cli::array <System::Byte> ^ rawSymbolStore);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")]
public System.Reflection.Assembly Load(byte[] rawAssembly, byte[]? rawSymbolStore);

public System.Reflection.Assembly Load(byte[] rawAssembly, byte[] rawSymbolStore);

public System.Reflection.Assembly Load(byte[] rawAssembly, byte[]? rawSymbolStore);

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")>]
member this.Load : byte[] * byte[] -> System.Reflection.Assembly

member this.Load : byte[] * byte[] -> System.Reflection.Assembly

abstract member Load : byte[] * byte[] -> System.Reflection.Assembly
override this.Load : byte[] * byte[] -> System.Reflection.Assembly

Public Function Load (rawAssembly As Byte(), rawSymbolStore As Byte()) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Atributos

RequiresUnreferencedCodeAttribute

Exceções

Exemplos

O exemplo seguinte demonstra a utilização do carregamento de um conjunto bruto.

Para que este exemplo de código seja executado, deve fornecer o nome de assembleia totalmente qualificado. Para informações sobre como obter o nome de assembleia totalmente qualificado, consulte Nomes de Assembleia.

using namespace System;
using namespace System::IO;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
void InstantiateMyType( AppDomain^ domain )
{
   try
   {
      
      // You must supply a valid fully qualified assembly name here.
      domain->CreateInstance( "Assembly text name, Version, Culture, PublicKeyToken", "MyType" );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}


// Loads the content of a file to a Byte array.
array<Byte>^ loadFile( String^ filename )
{
   FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
   array<Byte>^buffer = gcnew array<Byte>((int)fs->Length);
   fs->Read( buffer, 0, buffer->Length );
   fs->Close();
   return buffer;
}


// Creates a dynamic assembly with symbol information
// and saves them to temp.dll and temp.pdb
void EmitAssembly( AppDomain^ domain )
{
   AssemblyName^ assemblyName = gcnew AssemblyName;
   assemblyName->Name = "MyAssembly";
   AssemblyBuilder^ assemblyBuilder = domain->DefineDynamicAssembly( assemblyName, AssemblyBuilderAccess::Save );
   ModuleBuilder^ moduleBuilder = assemblyBuilder->DefineDynamicModule( "MyModule", "temp.dll", true );
   TypeBuilder^ typeBuilder = moduleBuilder->DefineType( "MyType", TypeAttributes::Public );
   ConstructorBuilder^ constructorBuilder = typeBuilder->DefineConstructor( MethodAttributes::Public, CallingConventions::Standard, nullptr );
   ILGenerator^ ilGenerator = constructorBuilder->GetILGenerator();
   ilGenerator->EmitWriteLine( "MyType instantiated!" );
   ilGenerator->Emit( OpCodes::Ret );
   typeBuilder->CreateType();
   assemblyBuilder->Save( "temp.dll" );
}

ref class Resolver
{
public:
   static Assembly^ MyResolver( Object^ sender, ResolveEventArgs^ args )
   {
      AppDomain^ domain = dynamic_cast<AppDomain^>(sender);
      
      // Once the files are generated, this call is
      // actually no longer necessary.
      EmitAssembly( domain );
      array<Byte>^rawAssembly = loadFile( "temp.dll" );
      array<Byte>^rawSymbolStore = loadFile( "temp.pdb" );
      Assembly^ assembly = domain->Load( rawAssembly, rawSymbolStore );
      return assembly;
   }

};

int main()
{
   AppDomain^ currentDomain = AppDomain::CurrentDomain;
   InstantiateMyType( currentDomain ); // Failed!
   currentDomain->AssemblyResolve += gcnew ResolveEventHandler( Resolver::MyResolver );
   InstantiateMyType( currentDomain ); // OK!
}

using System;
using System.IO;
using System.Reflection;
using System.Reflection.Emit;

class LoadRawSnippet {
   public static void Main() {
      AppDomain currentDomain = AppDomain.CurrentDomain;

      InstantiateMyType(currentDomain);   // Failed!

      currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolver);

      InstantiateMyType(currentDomain);   // OK!
   }

   static void InstantiateMyType(AppDomain domain) {
      try {
     // You must supply a valid fully qualified assembly name here.
         domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyType");
      } catch (Exception e) {
         Console.WriteLine(e.Message);
      }
   }

   // Loads the content of a file to a byte array.
   static byte[] loadFile(string filename) {
      FileStream fs = new FileStream(filename, FileMode.Open);
      byte[] buffer = new byte[(int) fs.Length];
      fs.Read(buffer, 0, buffer.Length);
      fs.Close();

      return buffer;
   }

   static Assembly MyResolver(object sender, ResolveEventArgs args) {
      AppDomain domain = (AppDomain) sender;

      // Once the files are generated, this call is
      // actually no longer necessary.
      EmitAssembly(domain);

      byte[] rawAssembly = loadFile("temp.dll");
      byte[] rawSymbolStore = loadFile("temp.pdb");
      Assembly assembly = domain.Load(rawAssembly, rawSymbolStore);

      return assembly;
   }

   // Creates a dynamic assembly with symbol information
   // and saves them to temp.dll and temp.pdb
   static void EmitAssembly(AppDomain domain) {
      AssemblyName assemblyName = new AssemblyName();
      assemblyName.Name = "MyAssembly";

      AssemblyBuilder assemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Save);
      ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule("MyModule", "temp.dll", true);
      TypeBuilder typeBuilder = moduleBuilder.DefineType("MyType", TypeAttributes.Public);

      ConstructorBuilder constructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, null);
      ILGenerator ilGenerator = constructorBuilder.GetILGenerator();
      ilGenerator.EmitWriteLine("MyType instantiated!");
      ilGenerator.Emit(OpCodes.Ret);

      typeBuilder.CreateType();

      assemblyBuilder.Save("temp.dll");
   }
}

open System
open System.IO
open System.Reflection
open System.Reflection.Emit

let instantiateMyType (domain: AppDomain) =
    try
        // You must supply a valid fully qualified assembly name here.
        domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyType")
        |> ignore  
    with e ->
        printfn $"{e.Message}"

// Loads the content of a file to a byte array.
let loadFile filename =
    use fs = new FileStream(filename, FileMode.Open)
    let buffer = Array.zeroCreate<byte> (int fs.Length)
    fs.Read(buffer, 0, buffer.Length) |> ignore
    fs.Close()
    buffer

// Creates a dynamic assembly with symbol information
// and saves them to temp.dll and temp.pdb
let emitAssembly (domain: AppDomain) =
    let assemblyName = AssemblyName()
    assemblyName.Name <- "MyAssembly"

    let assemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Save)
    let moduleBuilder = assemblyBuilder.DefineDynamicModule("MyModule", "temp.dll", true)
    let typeBuilder = moduleBuilder.DefineType("MyType", TypeAttributes.Public)

    let constructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, null)
    let ilGenerator = constructorBuilder.GetILGenerator()
    ilGenerator.EmitWriteLine "MyType instantiated!"
    ilGenerator.Emit OpCodes.Ret

    typeBuilder.CreateType() |> ignore

    assemblyBuilder.Save "temp.dll"

let myResolver (sender: obj) (args: ResolveEventArgs) =
    let domain = sender :?> AppDomain

    // Once the files are generated, this call is
    // actually no longer necessary.
    emitAssembly domain

    let rawAssembly = loadFile "temp.dll"
    let rawSymbolStore = loadFile "temp.pdb"
    domain.Load(rawAssembly, rawSymbolStore)

let currentDomain = AppDomain.CurrentDomain

instantiateMyType currentDomain   // Failed!

currentDomain.add_AssemblyResolve (ResolveEventHandler myResolver)

instantiateMyType currentDomain   // OK!

Imports System.IO
Imports System.Reflection
Imports System.Reflection.Emit

Module Test
   
   Sub Main()
      Dim currentDomain As AppDomain = AppDomain.CurrentDomain
      
      InstantiateMyType(currentDomain)      ' Failed!

      AddHandler currentDomain.AssemblyResolve, AddressOf MyResolver
      
      InstantiateMyType(currentDomain)      ' OK!
   End Sub
   
   
   Sub InstantiateMyType(domain As AppDomain)
      Try
     ' You must supply a valid fully qualified assembly name here.
         domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyType")
      Catch e As Exception
         Console.WriteLine(e.Message)
      End Try
   End Sub
   
   
   ' Loads the content of a file to a byte array. 
   Function loadFile(filename As String) As Byte()
      Dim fs As New FileStream(filename, FileMode.Open)
      Dim buffer(CInt(fs.Length - 1)) As Byte
      fs.Read(buffer, 0, buffer.Length)
      fs.Close()
      
      Return buffer
   End Function 'loadFile
   
   
   Function MyResolver(sender As Object, args As ResolveEventArgs) As System.Reflection.Assembly
      Dim domain As AppDomain = DirectCast(sender, AppDomain)
      
      ' Once the files are generated, this call is
      ' actually no longer necessary.
      EmitAssembly(domain)
      
      Dim rawAssembly As Byte() = loadFile("temp.dll")
      Dim rawSymbolStore As Byte() = loadFile("temp.pdb")
      Dim myAssembly As System.Reflection.Assembly = domain.Load(rawAssembly, rawSymbolStore)
      
      Return myAssembly
   End Function 'MyResolver
   
   
   ' Creates a dynamic assembly with symbol information
   ' and saves them to temp.dll and temp.pdb
   Sub EmitAssembly(domain As AppDomain)
      Dim assemblyName As New AssemblyName()
      assemblyName.Name = "MyAssembly"
      
      Dim assemblyBuilder As AssemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Save)
      Dim moduleBuilder As ModuleBuilder = assemblyBuilder.DefineDynamicModule("MyModule", "temp.dll", True)
      Dim typeBuilder As TypeBuilder = moduleBuilder.DefineType("MyType", TypeAttributes.Public)
      
      Dim constructorBuilder As ConstructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, Nothing)
      Dim ilGenerator As ILGenerator = constructorBuilder.GetILGenerator()
      ilGenerator.EmitWriteLine("MyType instantiated!")
      ilGenerator.Emit(OpCodes.Ret)
      
      typeBuilder.CreateType()
      
      assemblyBuilder.Save("temp.dll")
   End Sub

End Module 'Test

Observações

Para informações que são comuns a todas as sobrecargas deste método, veja sobrecarga Load(AssemblyName) do método.

A partir do .NET Framework 4, o nível de confiança de um assembly carregado usando este método é o mesmo do nível de confiança do domínio de aplicação.

public:
 virtual System::Reflection::Assembly ^ Load(System::Reflection::AssemblyName ^ assemblyRef, System::Security::Policy::Evidence ^ assemblySecurity);

public System.Reflection.Assembly Load(System.Reflection.AssemblyName assemblyRef, System.Security.Policy.Evidence assemblySecurity);

[System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of Load which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")]
public System.Reflection.Assembly Load(System.Reflection.AssemblyName assemblyRef, System.Security.Policy.Evidence assemblySecurity);

abstract member Load : System.Reflection.AssemblyName * System.Security.Policy.Evidence -> System.Reflection.Assembly
override this.Load : System.Reflection.AssemblyName * System.Security.Policy.Evidence -> System.Reflection.Assembly

[<System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of Load which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")>]
abstract member Load : System.Reflection.AssemblyName * System.Security.Policy.Evidence -> System.Reflection.Assembly
override this.Load : System.Reflection.AssemblyName * System.Security.Policy.Evidence -> System.Reflection.Assembly

Public Function Load (assemblyRef As AssemblyName, assemblySecurity As Evidence) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Atributos

ObsoleteAttribute

Exceções

Observações

Para informações que são comuns a todas as sobrecargas deste método, veja sobrecarga Load(AssemblyName) do método.

public:
 virtual System::Reflection::Assembly ^ Load(System::String ^ assemblyString, System::Security::Policy::Evidence ^ assemblySecurity);

public System.Reflection.Assembly Load(string assemblyString, System.Security.Policy.Evidence assemblySecurity);

[System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of Load which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")]
public System.Reflection.Assembly Load(string assemblyString, System.Security.Policy.Evidence assemblySecurity);

abstract member Load : string * System.Security.Policy.Evidence -> System.Reflection.Assembly
override this.Load : string * System.Security.Policy.Evidence -> System.Reflection.Assembly

[<System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of Load which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")>]
abstract member Load : string * System.Security.Policy.Evidence -> System.Reflection.Assembly
override this.Load : string * System.Security.Policy.Evidence -> System.Reflection.Assembly

Public Function Load (assemblyString As String, assemblySecurity As Evidence) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Atributos

ObsoleteAttribute

Exceções

Observações

Para informações que são comuns a todas as sobrecargas deste método, veja sobrecarga Load(AssemblyName) do método.

public:
 virtual System::Reflection::Assembly ^ Load(cli::array <System::Byte> ^ rawAssembly, cli::array <System::Byte> ^ rawSymbolStore, System::Security::Policy::Evidence ^ securityEvidence);

public System.Reflection.Assembly Load(byte[] rawAssembly, byte[] rawSymbolStore, System.Security.Policy.Evidence securityEvidence);

[System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of Load which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkId=155570 for more information.")]
public System.Reflection.Assembly Load(byte[] rawAssembly, byte[] rawSymbolStore, System.Security.Policy.Evidence securityEvidence);

abstract member Load : byte[] * byte[] * System.Security.Policy.Evidence -> System.Reflection.Assembly
override this.Load : byte[] * byte[] * System.Security.Policy.Evidence -> System.Reflection.Assembly

[<System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of Load which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkId=155570 for more information.")>]
abstract member Load : byte[] * byte[] * System.Security.Policy.Evidence -> System.Reflection.Assembly
override this.Load : byte[] * byte[] * System.Security.Policy.Evidence -> System.Reflection.Assembly

Public Function Load (rawAssembly As Byte(), rawSymbolStore As Byte(), securityEvidence As Evidence) As Assembly

Parâmetros

Devoluções

O conjunto carregado.

Implementações

Atributos

ObsoleteAttribute

Exceções

Observações

Para informações que são comuns a todas as sobrecargas deste método, veja sobrecarga Load(AssemblyName) do método.

A partir do .NET Framework 4, o nível de confiança de um assembly carregado usando este método é o mesmo do nível de confiança do domínio de aplicação.