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Classe ServerDdlTriggerEvent

The ServerDdlTriggerEvent object represents the Microsoft SQL Server data definition language (DDL) trigger events that can be included in a server DDL trigger event set.

Gerarchia di ereditarietà

System. . :: . .Object
  Microsoft.SqlServer.Management.Smo..::..ServerDdlTriggerEvent

Spazio dei nomi  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.SqlEnum (in Microsoft.SqlServer.SqlEnum.dll)

Sintassi

'Dichiarazione
Public NotInheritable Class ServerDdlTriggerEvent
'Utilizzo
Dim instance As ServerDdlTriggerEvent
public sealed class ServerDdlTriggerEvent
public ref class ServerDdlTriggerEvent sealed
[<SealedAttribute>]
type ServerDdlTriggerEvent =  class end
public final class ServerDdlTriggerEvent

Nel tipo ServerDdlTriggerEvent sono esposti i membri seguenti.

Proprietà

  Nome Descrizione
Proprietà pubblicaMembro statico AddRoleMember Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AddServerRoleMember Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AddSignature Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AddSignatureSchemaObject Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterApplicationRole Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterAssembly Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterAsymmetricKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterAuthorizationDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterAuthorizationServer Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterBrokerPriority Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterCertificate Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterCredential Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterCryptographicProvider Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterDatabaseAuditSpecification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterDatabaseEncryptionKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterEndpoint Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterEventSession Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterExtendedProperty Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterFulltextCatalog Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterFulltextIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterFulltextStoplist Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterFunction Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterInstance Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterLinkedServer Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterLogin Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterMasterKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterMessage Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterMessageType Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterPartitionFunction Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterPartitionScheme Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterPlanGuide Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterProcedure Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterQueue Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterRemoteServer Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterRemoteServiceBinding Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterResourceGovernorConfig Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterResourcePool Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterRole Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterRoute Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterSchema Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterServerAudit Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterServerAuditSpecification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterService Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterServiceMasterKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterSymmetricKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterTable Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterTrigger Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterUser Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterView Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterWorkloadGroup Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico AlterXmlSchemaCollection Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico BindDefault Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico BindRule Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateApplicationRole Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateAssembly Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateAsymmetricKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateBrokerPriority Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateCertificate Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateContract Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateCredential Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateCryptographicProvider Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateDatabaseAuditSpecification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateDatabaseEncryptionKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateDefault Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateEndpoint Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateEventNotification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateEventSession Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateExtendedProcedure Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateExtendedProperty Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateFulltextCatalog Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateFulltextIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateFulltextStoplist Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateFunction Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateLinkedServer Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateLinkedServerLogin Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateLogin Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateMasterKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateMessage Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateMessageType Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreatePartitionFunction Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreatePartitionScheme Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreatePlanGuide Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateProcedure Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateQueue Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateRemoteServer Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateRemoteServiceBinding Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateResourcePool Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateRole Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateRoute Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateRule Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateSchema Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateServerAudit Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateServerAuditSpecification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateService Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateSpatialIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateStatistics Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateSymmetricKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateSynonym Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateTable Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateTrigger Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateType Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateUser Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateView Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateWorkloadGroup Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateXmlIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico CreateXmlSchemaCollection Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DenyDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DenyServer Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropApplicationRole Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropAssembly Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropAsymmetricKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropBrokerPriority Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropCertificate Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropContract Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropCredential Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropCryptographicProvider Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropDatabaseAuditSpecification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropDatabaseEncryptionKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropDefault Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropEndpoint Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropEventNotification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropEventSession Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropExtendedProcedure Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropExtendedProperty Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropFulltextCatalog Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropFulltextIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropFulltextStoplist Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropFunction Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropIndex Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropLinkedServer Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropLinkedServerLogin Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropLogin Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropMasterKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropMessage Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropMessageType Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropPartitionFunction Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropPartitionScheme Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropPlanGuide Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropProcedure Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropQueue Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropRemoteServer Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropRemoteServiceBinding Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropResourcePool Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropRole Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropRoleMember Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropRoute Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropRule Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropSchema Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropServerAudit Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropServerAuditSpecification Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropServerRoleMember Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropService Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropSignature Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropSignatureSchemaObject Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropStatistics Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropSymmetricKey Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropSynonym Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropTable Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropTrigger Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropType Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropUser Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropView Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropWorkloadGroup Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico DropXmlSchemaCollection Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico GrantDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico GrantServer Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico Logon Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico Rename Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico RevokeDatabase Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico RevokeServer Gets a server data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico UnbindDefault Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico UnbindRule Gets a database data definition language (DDL) trigger event that can be included in the event set.
Proprietà pubblicaMembro statico UpdateStatistics Gets a database data definition language (DDL) trigger event that can be included in the event set.

In alto

Metodi

  Nome Descrizione
Metodo pubblicoMembro statico Add Returns a Server DDL trigger event set after adding an SQL DLL trigger event to the event set.
Metodo pubblicoMembro statico BitwiseOr Creates a new object event set by performing a BitwiseOr operation on two ServerDdlTriggerEvent objects.
Metodo pubblico Equals Ereditato da Object.
Metodo protetto Finalize Ereditato da Object.
Metodo pubblico GetHashCode Ereditato da Object.
Metodo pubblico GetType Ereditato da Object.
Metodo protetto MemberwiseClone Ereditato da Object.
Metodo pubblico ToString Returns the object in String format. Esegue l'override di Object. . :: . .ToString() () () ().

In alto

Operatori

  Nome Descrizione
Operatore pubblicoMembro statico Addition Creates a server event set by performing an addition operation on two ServerDdlTriggerEvent objects.
Operatore pubblicoMembro statico BitwiseOr Creates a server event set by performing a bitwise OR operation on two ServerDdlTriggerEvent objects.
Operatore pubblicoMembro statico Implicit Widening Implicit Implicit Implicit(ServerDdlTriggerEvent to ServerDdlTriggerEventSet) Creates a server event set by performing an implicit operation on a ServerDdlTriggerEvent object.

In alto

Osservazioni

DDL triggers run a Transact-SQL or user-defined function in response to certain DDL events. The ServerDdlTriggerEvent object contains a property for each event to which the server DDL trigger can respond. The actual set of events is specified using the ServerDdlTriggerEventSet object.

Thread Safety

Tutti i membri statici pubblici (Shared in Microsoft Visual Basic) di questo tipo sono sicuri per le operazioni a thread multipli. Non è invece garantita la sicurezza dei membri dell'istanza.

Protezione dei thread

I membri static (Shared in Visual Basic) pubblici di questo tipo sono affidabili. Non è invece garantita la sicurezza dei membri dell'istanza.