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CodeAccessSecurityAttribute Class

Specifies the base attribute class for code access security.

System::Object
  System::Attribute
    System.Security.Permissions::SecurityAttribute
      System.Security.Permissions::CodeAccessSecurityAttribute
        More...

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

[SerializableAttribute]
[ComVisibleAttribute(true)]
[AttributeUsageAttribute(AttributeTargets::Assembly|AttributeTargets::Class|AttributeTargets::Struct|AttributeTargets::Constructor|AttributeTargets::Method, AllowMultiple = true, 
	Inherited = false)]
public ref class CodeAccessSecurityAttribute abstract : public SecurityAttribute

The CodeAccessSecurityAttribute type exposes the following members.

  NameDescription
Protected methodCodeAccessSecurityAttributeInitializes a new instance of CodeAccessSecurityAttribute with the specified SecurityAction.
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  NameDescription
Public propertyActionGets or sets a security action. (Inherited from SecurityAttribute.)
Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
Public propertyUnrestrictedGets or sets a value indicating whether full (unrestricted) permission to the resource protected by the attribute is declared. (Inherited from SecurityAttribute.)
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  NameDescription
Public methodCreatePermissionWhen overridden in a derived class, creates a permission object that can then be serialized into binary form and persistently stored along with the SecurityAction in an assembly's metadata. (Inherited from SecurityAttribute.)
Public methodEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate method_Attribute::GetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute::GetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute::GetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute::InvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)
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This attribute class associates a SecurityAction, for example, Demand, with a custom security attribute.

The types that derive from CodeAccessSecurityAttribute are used to help restrict access to resources or securable operations.

The security information declared by a security attribute is stored in the metadata of the attribute target and is accessed by the system at run time. Security attributes are used only for declarative security. Use the corresponding permission class derived from CodeAccessPermission for imperative security.

Notes to Inheritors

All permission attributes derived from this class must have only a single constructor that takes a SecurityAction as its only parameter.

The following example shows a permission attribute derived from the CodeAccessSecurityAttribute class.

using namespace System;
using namespace System::IO;
using namespace System::Runtime::Remoting;
using namespace System::Security;
using namespace System::Security::Permissions;
using namespace System::Reflection;
using namespace MyPermission;

// Use the command line option '/keyfile' or appropriate project settings to sign this assembly.
[assembly:System::Security::AllowPartiallyTrustedCallersAttribute];
[AttributeUsage(AttributeTargets::Method|AttributeTargets::Constructor|AttributeTargets::Class|AttributeTargets::Struct|AttributeTargets::Assembly,AllowMultiple=true,Inherited=false)]
[Serializable]
public ref class NameIdPermissionAttribute: public CodeAccessSecurityAttribute
{
private:
   String^ m_Name;
   bool m_unrestricted;

public:
   NameIdPermissionAttribute( SecurityAction action )
      : CodeAccessSecurityAttribute( action )
   {
      m_Name = nullptr;
      m_unrestricted = false;
   }


   property String^ Name
   {
      String^ get()
      {
         return m_Name;
      }

      void set( String^ value )
      {
         m_Name = value;
      }

   }
   virtual IPermission^ CreatePermission() override
   {
      if ( m_unrestricted )
      {
         throw gcnew ArgumentException( "Unrestricted permissions not allowed in identity permissions." );
      }
      else
      {
         if ( m_Name == nullptr )
                  return gcnew NameIdPermission( PermissionState::None );
         return gcnew NameIdPermission( m_Name );
      }
   }

};

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Obsolete (compiler warning) in Windows Phone 8.1
Obsolete (compiler warning) in Windows Phone Silverlight 8.1
Obsolete (compiler warning) in Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

System::Object
  System::Attribute
    System.Security.Permissions::SecurityAttribute
      System.Security.Permissions::CodeAccessSecurityAttribute
        System.Configuration::ConfigurationPermissionAttribute
        System.Data.Common::DBDataPermissionAttribute
        System.Data.OracleClient::OraclePermissionAttribute
        System.Diagnostics::EventLogPermissionAttribute
        System.Diagnostics::PerformanceCounterPermissionAttribute
        System.DirectoryServices::DirectoryServicesPermissionAttribute
        System.Drawing.Printing::PrintingPermissionAttribute
        System.IdentityModel.Services::ClaimsPrincipalPermissionAttribute
        System.Messaging::MessageQueuePermissionAttribute
        System.Net::DnsPermissionAttribute
        System.Net.Mail::SmtpPermissionAttribute
        System.Net.NetworkInformation::NetworkInformationPermissionAttribute
        System.Net.PeerToPeer.Collaboration::PeerCollaborationPermissionAttribute
        System.Net.PeerToPeer::PnrpPermissionAttribute
        System.Net::SocketPermissionAttribute
        System.Net::WebPermissionAttribute
        System.Security.Permissions::DataProtectionPermissionAttribute
        System.Security.Permissions::EnvironmentPermissionAttribute
        System.Security.Permissions::FileDialogPermissionAttribute
        System.Security.Permissions::FileIOPermissionAttribute
        System.Security.Permissions::GacIdentityPermissionAttribute
        System.Security.Permissions::HostProtectionAttribute
        System.Security.Permissions::IsolatedStoragePermissionAttribute
        System.Security.Permissions::KeyContainerPermissionAttribute
        System.Security.Permissions::MediaPermissionAttribute
        System.Security.Permissions::PermissionSetAttribute
        System.Security.Permissions::PrincipalPermissionAttribute
        System.Security.Permissions::PublisherIdentityPermissionAttribute
        System.Security.Permissions::ReflectionPermissionAttribute
        System.Security.Permissions::RegistryPermissionAttribute
        System.Security.Permissions::SecurityPermissionAttribute
        System.Security.Permissions::SiteIdentityPermissionAttribute
        System.Security.Permissions::StorePermissionAttribute
        System.Security.Permissions::StrongNameIdentityPermissionAttribute
        System.Security.Permissions::TypeDescriptorPermissionAttribute
        System.Security.Permissions::UIPermissionAttribute
        System.Security.Permissions::UrlIdentityPermissionAttribute
        System.Security.Permissions::WebBrowserPermissionAttribute
        System.Security.Permissions::ZoneIdentityPermissionAttribute
        System.ServiceProcess::ServiceControllerPermissionAttribute
        System.Transactions::DistributedTransactionPermissionAttribute
        System.Web::AspNetHostingPermissionAttribute
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