CodeAccessSecurityAttribute Class
Specifies the base attribute class for code access security.
Assembly: mscorlib (in mscorlib.dll)
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
| Name | Description | |
|---|---|---|
![]() | CodeAccessSecurityAttribute(SecurityAction) | Initializes a new instance of CodeAccessSecurityAttribute with the specified SecurityAction. |
| Name | Description | |
|---|---|---|
![]() | Action | Gets or sets a security action.(Inherited from SecurityAttribute.) |
![]() | TypeId | |
![]() | Unrestricted | Gets or sets a value indicating whether full (unrestricted) permission to the resource protected by the attribute is declared.(Inherited from SecurityAttribute.) |
| Name | Description | |
|---|---|---|
![]() | CreatePermission() | 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.) |
![]() | Equals(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.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Returns the hash code for this instance.(Inherited from Attribute.) |
![]() | GetType() | |
![]() | IsDefaultAttribute() | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.) |
![]() | Match(Object) | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.) |
![]() | MemberwiseClone() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) | Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.) |
![]() ![]() | _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.) |
![]() ![]() | _Attribute.GetTypeInfoCount(UInt32) | Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.) |
![]() ![]() | _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
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.




