CodeAccessSecurityAttribute Class
Specifies the base attribute class for code access security.
Assembly: mscorlib (in mscorlib.dll)
[SerializableAttribute] [ComVisibleAttribute(true)] [AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple = true, Inherited = false)] public abstract class CodeAccessSecurityAttribute : SecurityAttribute
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 System; using System.IO; using System.Runtime.Remoting; using System.Security; using System.Security.Permissions; using System.Reflection; using MyPermission; // Use the command line option '/keyfile' or appropriate project settings to sign this assembly. [assembly: System.Security.AllowPartiallyTrustedCallersAttribute ()] namespace MyPermissionAttribute { [AttributeUsage (AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly, AllowMultiple = true, Inherited = false)] [Serializable] sealed public class NameIdPermissionAttribute : CodeAccessSecurityAttribute { private String m_Name = null; private bool m_unrestricted = false; public NameIdPermissionAttribute (SecurityAction action): base( action ) { } public String Name { get { return m_Name; } set { m_Name = value; } } public override IPermission CreatePermission () { if (m_unrestricted) { throw new ArgumentException ("Unrestricted permissions not allowed in identity permissions."); } else { if (m_Name == null) return new NameIdPermission (PermissionState.None); return new NameIdPermission (m_Name); } } } }
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.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.UIPermissionAttribute
System.Security.Permissions.UrlIdentityPermissionAttribute
System.Security.Permissions.WebBrowserPermissionAttribute
System.Security.Permissions.ZoneIdentityPermissionAttribute
System.ServiceProcess.ServiceControllerPermissionAttribute
System.Transactions.DistributedTransactionPermissionAttribute
System.Web.AspNetHostingPermissionAttribute
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.