CodeAccessSecurityAttribute Class

 

Specifies the base attribute class for code access security.

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

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

<SerializableAttribute>
<AttributeUsageAttribute(AttributeTargets.Assembly Or AttributeTargets.Class Or AttributeTargets.Struct Or AttributeTargets.Constructor Or AttributeTargets.Method,
	AllowMultiple := True, Inherited := False)>
<ComVisibleAttribute(True)>
Public MustInherit Class CodeAccessSecurityAttribute
	Inherits SecurityAttribute

NameDescription
System_CAPS_protmethodCodeAccessSecurityAttribute(SecurityAction)

Initializes a new instance of CodeAccessSecurityAttribute with the specified SecurityAction.

NameDescription
System_CAPS_pubpropertyAction

Gets or sets a security action.(Inherited from SecurityAttribute.)

System_CAPS_pubpropertyTypeId

When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)

System_CAPS_pubpropertyUnrestricted

Gets or sets a value indicating whether full (unrestricted) permission to the resource protected by the attribute is declared.(Inherited from SecurityAttribute.)

NameDescription
System_CAPS_pubmethodCreatePermission()

When 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.)

System_CAPS_pubmethodEquals(Object)

This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Returns the hash code for this instance.(Inherited from Attribute.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodIsDefaultAttribute()

When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)

System_CAPS_pubmethodMatch(Object)

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfoCount(UInt32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

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.

Imports System
Imports System.IO
Imports System.Runtime.Remoting
Imports System.Security
Imports System.Security.Permissions
Imports System.Reflection
Imports MyPermission
Imports Microsoft.VisualBasic


' Use the command line option '/keyfile' or appropriate project settings to sign this assembly.
<Assembly: System.Security.AllowPartiallyTrustedCallersAttribute()> 
Namespace MyPermissionAttribute

    <AttributeUsage(AttributeTargets.All, AllowMultiple:=True, Inherited:=False)> Public NotInheritable Class NameIdPermissionAttribute
        Inherits CodeAccessSecurityAttribute
        Private m_Name As String = Nothing
        Private m_unrestricted As Boolean = False


        Public Sub New(ByVal action As SecurityAction)
            MyBase.New(action)
        End Sub 'NewNew


        Public Property Name() As String
            Get
                Return m_name
            End Get
            Set(ByVal Value As String)
                m_name = Value
            End Set
        End Property

        Public Overrides Function CreatePermission() As IPermission
            If m_unrestricted Then
                Throw New ArgumentException("Unrestricted permissions not allowed in identity permissions.")
            Else
                If m_name Is Nothing Then
                    Return New NameIdPermission(PermissionState.None)
                End If
                Return New NameIdPermission(m_name)
            End If
        End Function 'CreatePermission
    End Class ' NameIdPermissionAttribute
End Namespace

.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0

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

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