AssemblyName.CodeBase Propiedad

Definición

Indica o establece la ubicación del ensamblado como una dirección URL.Gets or sets the location of the assembly as a URL.

public:
 property System::String ^ CodeBase { System::String ^ get(); void set(System::String ^ value); };
public string CodeBase { get; set; }
member this.CodeBase : string with get, set
Public Property CodeBase As String

Valor de propiedad

String

Cadena que representa la dirección URL del ensamblado.A string that is the URL location of the assembly.

Ejemplos

En el ejemplo siguiente se emite un ensamblado dinámico y se guarda en el directorio actual.The following example emits a dynamic assembly and saves it to the current directory. Cuando se crea el ensamblado, CodeBase se utiliza la propiedad para especificar el directorio donde se guarda el ensamblado.When the assembly is created, the CodeBase property is used to specify the directory where the assembly is saved.

using namespace System;
using namespace System::Reflection;
using namespace System::Threading;
using namespace System::IO;
using namespace System::Globalization;
using namespace System::Reflection::Emit;
using namespace System::Configuration::Assemblies;
static void MakeAssembly( AssemblyName^ myAssemblyName, String^ fileName )
{
   // Get the assembly builder from the application domain associated with the current thread.
   AssemblyBuilder^ myAssemblyBuilder = Thread::GetDomain()->DefineDynamicAssembly( myAssemblyName, AssemblyBuilderAccess::RunAndSave );

   // Create a dynamic module in the assembly.
   ModuleBuilder^ myModuleBuilder = myAssemblyBuilder->DefineDynamicModule( "MyModule", fileName );

   // Create a type in the module.
   TypeBuilder^ myTypeBuilder = myModuleBuilder->DefineType( "MyType" );

   // Create a method called 'Main'.
   MethodBuilder^ myMethodBuilder = myTypeBuilder->DefineMethod( "Main", static_cast<MethodAttributes>(MethodAttributes::Public | MethodAttributes::HideBySig | MethodAttributes::Static), void::typeid, nullptr );

   // Get the Intermediate Language generator for the method.
   ILGenerator^ myILGenerator = myMethodBuilder->GetILGenerator();

   // Use the utility method to generate the IL instructions that print a String* to the console.
   myILGenerator->EmitWriteLine( "Hello World!" );

   // Generate the 'ret' IL instruction.
   myILGenerator->Emit( OpCodes::Ret );

   // End the creation of the type.
   myTypeBuilder->CreateType();

   // Set the method with name 'Main' as the entry point in the assembly.
   myAssemblyBuilder->SetEntryPoint( myMethodBuilder );
   myAssemblyBuilder->Save( fileName );
}

int main()
{
   // Create a dynamic assembly with name 'MyAssembly' and build version '1.0.0.2001'.
   AssemblyName^ myAssemblyName = gcnew AssemblyName;

   // Set the codebase to the physical directory were the assembly resides.
   myAssemblyName->CodeBase = Directory::GetCurrentDirectory();

   // Set the culture information of the assembly to 'English-American'.
   myAssemblyName->CultureInfo = gcnew CultureInfo( "en-US" );

   // Set the hash algorithm to 'SHA256'.
   myAssemblyName->HashAlgorithm = AssemblyHashAlgorithm::SHA256;
   myAssemblyName->Name = "MyAssembly";
   myAssemblyName->Version = gcnew Version( "1.0.0.2001" );
   MakeAssembly( myAssemblyName, "MyAssembly.exe" );

   // Get all the assemblies currently loaded in the application domain.
   array<Assembly^>^myAssemblies = Thread::GetDomain()->GetAssemblies();

   // Get the dynamic assembly named 'MyAssembly'. 
   Assembly^ myAssembly = nullptr;
   for ( int i = 0; i < myAssemblies->Length; i++ )
   {
      if ( String::Compare( myAssemblies[ i ]->GetName()->Name, "MyAssembly" ) == 0 )
            myAssembly = myAssemblies[ i ];
   }
   if ( myAssembly != nullptr )
   {
      Console::WriteLine( "\nDisplaying the full assembly name\n" );
      Console::WriteLine( myAssembly->GetName()->FullName );
   }
}

using System;
using System.Reflection;
using System.Threading;
using System.IO;
using System.Globalization;
using System.Reflection.Emit;
using System.Configuration.Assemblies;

public class AssemblyName_CodeBase
{
   public static void MakeAssembly(AssemblyName myAssemblyName, string fileName)
   {
      // Get the assembly builder from the application domain associated with the current thread.
      AssemblyBuilder myAssemblyBuilder = Thread.GetDomain().DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.RunAndSave);
      // Create a dynamic module in the assembly.
      ModuleBuilder myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("MyModule", fileName);
      // Create a type in the module.
      TypeBuilder myTypeBuilder = myModuleBuilder.DefineType("MyType");
      // Create a method called 'Main'.
      MethodBuilder myMethodBuilder = myTypeBuilder.DefineMethod("Main", MethodAttributes.Public | MethodAttributes.HideBySig |
         MethodAttributes.Static, typeof(void), null);
      // Get the Intermediate Language generator for the method.
      ILGenerator myILGenerator = myMethodBuilder.GetILGenerator();
      // Use the utility method to generate the IL instructions that print a string to the console.
      myILGenerator.EmitWriteLine("Hello World!");
      // Generate the 'ret' IL instruction.
      myILGenerator.Emit(OpCodes.Ret);
      // End the creation of the type.
      myTypeBuilder.CreateType();
      // Set the method with name 'Main' as the entry point in the assembly.
      myAssemblyBuilder.SetEntryPoint(myMethodBuilder);
      myAssemblyBuilder.Save(fileName);
   }

   public static void Main()
   {

      // Create a dynamic assembly with name 'MyAssembly' and build version '1.0.0.2001'.
      AssemblyName myAssemblyName = new AssemblyName();
      // Set the codebase to the physical directory were the assembly resides.
      myAssemblyName.CodeBase = Directory.GetCurrentDirectory();
      // Set the culture information of the assembly to 'English-American'.
      myAssemblyName.CultureInfo = new CultureInfo("en-US");
      // Set the hash algorithm to 'SHA256'.
      myAssemblyName.HashAlgorithm = AssemblyHashAlgorithm.SHA256;
      myAssemblyName.Name = "MyAssembly";
      myAssemblyName.Version = new Version("1.0.0.2001");
      MakeAssembly(myAssemblyName, "MyAssembly.exe");

      // Get all the assemblies currently loaded in the application domain.
      Assembly[] myAssemblies = Thread.GetDomain().GetAssemblies();

      // Get the dynamic assembly named 'MyAssembly'.
      Assembly myAssembly = null;
      for(int i = 0; i < myAssemblies.Length; i++)
      {
         if(String.Compare(myAssemblies[i].GetName().Name, "MyAssembly") == 0)
            myAssembly = myAssemblies[i];
      }
      // Display the full assembly information to the console.
      if(myAssembly != null)
      {
         Console.WriteLine("\nDisplaying the full assembly name\n");
         Console.WriteLine(myAssembly.GetName().FullName);
      }
   }
}

Imports System.Reflection
Imports System.Threading
Imports System.IO
Imports System.Globalization
Imports System.Reflection.Emit
Imports System.Configuration.Assemblies

Public Class AssemblyName_CodeBase
   
   Public Shared Sub MakeAssembly(myAssemblyName As AssemblyName, fileName As String)
      ' Get the assembly builder from the application domain associated with the current thread.
      Dim myAssemblyBuilder As AssemblyBuilder = Thread.GetDomain().DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.RunAndSave)
      ' Create a dynamic module in the assembly.
      Dim myModuleBuilder As ModuleBuilder = myAssemblyBuilder.DefineDynamicModule("MyModule", fileName)
      ' Create a type in the module.
      Dim myTypeBuilder As TypeBuilder = myModuleBuilder.DefineType("MyType")
      ' Create a method called 'Main'.
      Dim myMethodBuilder As MethodBuilder = myTypeBuilder.DefineMethod("Main", MethodAttributes.Public Or MethodAttributes.HideBySig Or MethodAttributes.Static, GetType(object), Nothing)
      ' Get the Intermediate Language generator for the method.
      Dim myILGenerator As ILGenerator = myMethodBuilder.GetILGenerator()
      ' Use the utility method to generate the IL instructions that print a string to the console.
      myILGenerator.EmitWriteLine("Hello World!")
      ' Generate the 'ret' IL instruction.
      myILGenerator.Emit(OpCodes.Ret)
      ' End the creation of the type.
      myTypeBuilder.CreateType()
      ' Set the method with name 'Main' as the entry point in the assembly.
      myAssemblyBuilder.SetEntryPoint(myMethodBuilder)
      myAssemblyBuilder.Save(fileName)
   End Sub
   
   
   Public Shared Sub Main()
      
      ' Create a dynamic assembly with name 'MyAssembly' and build version '1.0.0.2001'.
      Dim myAssemblyName As New AssemblyName()
      ' Set the codebase to the physical directory were the assembly resides.
      myAssemblyName.CodeBase = Directory.GetCurrentDirectory()
      ' Set the culture information of the assembly to 'English-American'.
      myAssemblyName.CultureInfo = New CultureInfo("en-US")
      ' Set the hash algorithm to 'SHA256'.
      myAssemblyName.HashAlgorithm = AssemblyHashAlgorithm.SHA256
      myAssemblyName.Name = "MyAssembly"
      myAssemblyName.Version = New Version("1.0.0.2001")
      MakeAssembly(myAssemblyName, "MyAssembly.exe")
      
      ' Get all the assemblies currently loaded in the application domain.
      Dim myAssemblies As [Assembly]() = Thread.GetDomain().GetAssemblies()
      
      ' Get the dynamic assembly named 'MyAssembly'. 
      Dim myAssembly As [Assembly] = Nothing
      Dim i As Integer
      For i = 0 To myAssemblies.Length - 1
         If [String].Compare(myAssemblies(i).GetName().Name, "MyAssembly") = 0 Then
            myAssembly = myAssemblies(i)
         End If
      Next i ' Display the full assembly information to the console.
      If Not (myAssembly Is Nothing) Then
         Console.WriteLine(vbCrLf & "Displaying the full assembly name" & vbCrLf)
         Console.WriteLine(myAssembly.GetName().FullName)
      End If
   End Sub 
End Class 

Comentarios

Cuando se carga un ensamblado, este valor también se puede obtener utilizando la Assembly.CodeBase propiedad.When an assembly is loaded, this value can also be obtained using the Assembly.CodeBase property.

Si el ensamblado se cargó como una matriz de bytes, esta propiedad devuelve la ubicación del llamador de la Load(Byte[]) sobrecarga del método, no la ubicación del ensamblado cargado.If the assembly was loaded as a byte array, this property returns the location of the caller of the Load(Byte[]) method overload, not the location of the loaded assembly.

Nota

No utilice un AssemblyName solo con el CodeBase conjunto de propiedades.Do not use an AssemblyName with only the CodeBase property set. La CodeBase propiedad no proporciona elementos de la identidad del ensamblado (como el nombre o la versión), por lo que la carga no se realiza de acuerdo con las reglas de carga por identidad, como cabría esperar del Load método.The CodeBase property does not supply any elements of the assembly identity (such as name or version), so loading does not occur according to load-by-identity rules, as you would expect from the Load method. En su lugar, el ensamblado se carga mediante reglas de carga-de.Instead, the assembly is loaded using load-from rules. Para obtener información sobre las desventajas del uso del contexto de carga desde, vea la Assembly.LoadFrom sobrecarga del método o procedimientos recomendados para la carga de ensamblados.For information about the disadvantages of using the load-from context, see the Assembly.LoadFrom method overload or Best Practices for Assembly Loading.

Se aplica a