C# in a Nutshell, Second Edition

Name

DnsPermission

Synopsis

This class controls access to DNS services. The constructor accepts one argument, either System.Security.Permissions.PermissionState.None (no access to DNS services) or System.Security.Permissions.PermissionState.Unrestricted (all access).

This permission is Demand( )ed by all of the methods on the Dns class.

public sealed class DnsPermission : System.Security.CodeAccessPermission,
       System.Security.Permissions.IUnrestrictedPermission {
// Public Constructors
   public DnsPermission(System.Security.Permissions.PermissionState state);
// Public Instance Methods
   public override IPermission Copy( );   
// overrides CodeAccessPermission
   public override void FromXml(System.Security.SecurityElement securityElement)
// overrides CodeAccessPermission
   public override IPermission Intersect(System.Security.IPermission target)
// overrides CodeAccessPermission
   public override bool IsSubsetOf(System.Security.IPermission target);  
// overrides CodeAccessPermission
   public bool IsUnrestricted( );         
// implements IUnrestrictedPermission
   public override SecurityElement ToXml( );           
// overrides CodeAccessPermission
   public override IPermission Union(System.Security.IPermission target)
// overrides CodeAccessPermission
}

Hierarchy

System.Object → System.Security.CodeAccessPermission(System.Security.IPermission, System.Security.ISecurityEncodable, System.Security.IStackWalk) → DnsPermission(System.Security.Permissions.IUnrestrictedPermission)