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AppDomain.DefineDynamicAssembly Method (AssemblyName, AssemblyBuilderAccess, PermissionSet, PermissionSet, PermissionSet)

Note: This API is now obsolete. The non-obsolete alternative is DefineDynamicAssembly(AssemblyName, AssemblyBuilderAccess).

Defines a dynamic assembly using the specified name, access mode, and permission requests.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[<ObsoleteAttribute("Assembly level declarative security is obsolete and is no longer enforced by the CLR by default.  See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")>]
abstract DefineDynamicAssembly : 
        name:AssemblyName * 
        access:AssemblyBuilderAccess * 
        requiredPermissions:PermissionSet * 
        optionalPermissions:PermissionSet * 
        refusedPermissions:PermissionSet -> AssemblyBuilder 
[<ObsoleteAttribute("Assembly level declarative security is obsolete and is no longer enforced by the CLR by default.  See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")>]
override DefineDynamicAssembly : 
        name:AssemblyName * 
        access:AssemblyBuilderAccess * 
        requiredPermissions:PermissionSet * 
        optionalPermissions:PermissionSet * 
        refusedPermissions:PermissionSet -> AssemblyBuilder 

Parameters

name
Type: System.Reflection.AssemblyName
The unique identity of the dynamic assembly.
access
Type: System.Reflection.Emit.AssemblyBuilderAccess
The mode in which the dynamic assembly will be accessed.
requiredPermissions
Type: System.Security.PermissionSet
The required permissions request.
optionalPermissions
Type: System.Security.PermissionSet
The optional permissions request.
refusedPermissions
Type: System.Security.PermissionSet
The refused permissions request.

Return Value

Type: System.Reflection.Emit.AssemblyBuilder
A dynamic assembly with the specified name and features.

Implements

_AppDomain.DefineDynamicAssembly(AssemblyName, AssemblyBuilderAccess, PermissionSet, PermissionSet, PermissionSet)

ExceptionCondition
ArgumentNullException

name is a null reference (Nothing in Visual Basic).

ArgumentException

The Name property of name is a null reference (Nothing in Visual Basic).

-or-

The Name property of name begins with white space, or contains a forward or backward slash.

AppDomainUnloadedException

The operation is attempted on an unloaded application domain.

The permission requests specified for requiredPermissions, optionalPermissions, and refusedPermissions are not used unless the dynamic assembly has been saved and reloaded into memory. To specify permission requests for a transient assembly that is never saved to disk, use an overload of the DefineDynamicAssembly method that specifies evidence as well as requested permissions, and supply an Evidence object.

NoteNote

During the development of code that emits dynamic assemblies, it is recommended that you use an overload of the DefineDynamicAssembly method that specifies evidence and permissions, supply the evidence you want the dynamic assembly to have, and include SecurityPermissionFlag.SkipVerification in refusedPermissions. Including SkipVerification in the refusedPermissions parameter ensures that the MSIL is verified. A limitation of this technique is that it also causes SecurityException to be thrown when used with code that demands full trust.

This method should only be used to define a dynamic assembly in the current application domain. For more information, see the Load(AssemblyName) method overload .

NoteNote

In the .NET Framework versions 1.0, 1.1, and 2.0, the declarative security attributes applied to a dynamic assembly by using the requiredPermissions, optionalPermissions, and refusedPermissions parameters are stored in the old XML metadata format. See Emitting Declarative Security Attributes.

The following sample demonstrates the DefineDynamicAssembly method and AssemblyResolve event.

For this code example to run, you must provide the fully qualified assembly name. For information about how to obtain the fully qualified assembly name, see Assembly Names.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Obsolete (compiler warning) in 4

.NET Framework Client Profile

Supported in: 3.5 SP1
Obsolete (compiler warning) in 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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