Opc.Ua Namespace

The Opc.Ua namespace contains classes and interfaces which implement all of the types and services defined by the UA specification.

Classes

	Class	Description
	AccessLevels	Flags that can be set for the AccessLevel attribute.
	ApplicationConfiguration	Stores the configurable configuration information for a UA application. Stores the configurable configuration information for a UA application.
	ApplicationConfigurationSection	Loads the configuration section for an application.
	AsyncResultBase	A base class for AsyncResult objects
	BaseDataVariableState	A typed base class for all data variable nodes.
	BaseDataVariableState<T>	A typed base class for all data variable nodes.
	BaseDataVariableTypeState	A base class for all data variable type nodes.
	BaseDataVariableTypeState<T>	A typed base class for all data variable type nodes.
	BaseInstanceState	The base class for all instance nodes.
	BaseObjectState	The base class for all object nodes.
	BaseObjectTypeState	The base class for all object type nodes.
	BaseTypeState	The base class for all type nodes.
	BaseVariableState	The base class for all variable nodes.
	BaseVariableTypeState	The base class for all variable type nodes.
	BaseVariableValue	A thread safe object that can be used to access the value of a structure variable.
	BinaryDecoder	Decodes objects from a UA Binary encoded stream.
	BinaryEncoder	Encodes objects in a stream using the UA Binary encoding.
	BooleanCollection	A collection of Boolean values.
	BrowseNames
	ByteCollection	A collection of Byte values.
	ByteStringCollection	A collection of ByteString values.
	CertificateFactory	Creates certificates.
	CertificateIdentifier	The identifier for an X509 certificate.
	CertificateIdentifierCollection	A collection of CertificateIdentifier objects.
	CertificatePasswordProvider	The default certificate password provider implementation.
	CertificateStoreIdentifier	Describes a certificate store. Describes a certificate store.
	CertificateStoreType	The type of certificate store.
	CertificateTrustList	A list of trusted certificates.
	CertificateUpdateEventArgs	The event arguments provided when a certificate validation error occurs.
	CertificateValidationEventArgs	The event arguments provided when a certificate validation error occurs.
	CertificateValidator	Validates certificates.
	ClientBase	The client side interface with a UA server.
	ClientConfiguration	The configuration for a client application. The configuration for a client application.
	ConditionStateNames	Defines the default names for the condition states.
	ConfigurationLocation	Represents the location of a configuration file.
	ConfigurationWatcher	Watches the configuration file and reports any changes.
	ConfigurationWatcherEventArgs	Stores the arguments passed when the configuration file changes.
	ConfiguredEndpoint	Stores the configuration information for an endpoint. Stores the configuration information for an endpoint.
	ConfiguredEndpointCollection	Stores a list of cached endpoints. Stores a list of cached endpoints.
	ConnectionStatusEventArgs	The arguments passed to the ConnectionStatus event.
	ConnectionWaitingEventArgs	The arguments passed to the ConnectionWaiting event.
	ContentFilter.ElementResult	Stores the validation results for a ContentFilterElement.
	ContentFilter.Result	Stores the validation results for a ContentFilterElement.
	DataTypeState	The base class for all reference type nodes.
	DataValue	A class that stores the value of variable with an optional status code and timestamps.
	DataValueCollection	A collection of DataValues.
	DateTimeCollection	A collection of DateTime values.
	DefaultEncodingLimits	Defaults for encoders while encoding and decoding messages. Passed to encoders in IServiceMessageContext.
	DiagnosticInfo	Contains diagnostic information associated with a StatusCode.
	DiagnosticInfoCollection	A collection of DiagnosticInfo objects.
	DirectoryCertificateStore	Provides access to a simple file based certificate store.
	DiscoveryServerConfiguration	Specifies the configuration for a discovery server application.
	DoubleCollection	A collection of Double values.
	EncodeableFactory	Creates encodeable objects based on the type id.
	EncodeableObject	A concrete base class used by the autogenerated code.
	EncryptedData	Stores a block of encrypted data.
	EndpointBase	A base class for UA endpoints.
	EventFilter.Result	Stores the validation results for a EventFilter.
	EventNotifiers	Flags that can be set for the EventNotifier attribute.
	ExpandedNodeId	Extends a node id by adding a complete namespace URI.
	ExpandedNodeIdCollection	A collection of ExpandedNodeId objects.
	ExtensionObject	An object used to wrap data types that the receiver may not understand.
	ExtensionObjectCollection	A collection of ExtensionObjects.
	FilterContext	Provides context information to used when searching the address space.
	FloatCollection	A collection of Float values.
	FolderState	The base class for all folder nodes.
	FolderTypeState	The base class for all object type nodes.
	HiResClock	Produces high resolution timestamps.
	IEncodeableCollection	A collection of encodeable objects.
	ImpersonationContext	Stores information about the user that is currently being impersonated.
	InstanceStateSnapshot	A lightweight snapshot of an instance node.
	Int16Collection	A collection of Int16 values.
	Int32Collection	A collection of Int32 values.
	Int64Collection	A collection of Int64 values.
	InvokeServiceMessage	The message contract for the InvokeService service.
	InvokeServiceResponseMessage	The message contract for the InvokeService service response.
	IReferenceDictionary<T>	A dictionary designed to provide efficient lookups for references.
	JsonDecoder	Reads objects from a JSON stream.
	JsonEncoder	Writes objects to a JSON stream.
	LocalizedText	Human readable qualified with a locale.
	LocalizedTextCollection	A collection of LocalizedText objects.
	Matrix	Wraps a multi-dimensional array for use within a Variant.
	MessageContextExtension	Uses to add the service message context to the operation context.
	MethodState	The base class for all method nodes.
	MinimumSamplingIntervals	Constants defined for the MinimumSamplingInterval attribute.
	Namespaces	Defines well-known namespaces.
	NamespaceTable	The table of namespace uris for a server.
	NodeBrowser	A thread safe object which browses the references for an node.
	NodeId	Stores an identifier for a node in a server's address space.
	NodeIdCollection	A collection of NodeIds.
	NodeIdComparer	Helper which implements a NodeId IEqualityComparer for Linq queries.
	NodeIdDictionary<T>	A dictionary designed to provide efficient lookups for objects identified by a NodeId
	NodeIdParsingOptions	Options that affect how a NodeId string is parsed.
	NodeSet	A set of nodes in an address space.
	NodeState	The base class for custom nodes.
	NodeState.Notifier	Stores the notifier relationship to another node.
	NodeStateCollection	Stores a collection of nodes.
	NodeStateFactory	A class that creates instances of nodes based on the parameters provided.
	NodeStateHierarchyReference	Stores a reference from a node in the instance hierarchy.
	NodeStateReference	Stores the a reference for a node.
	NodeTable	A table of nodes.
	OAuth2Credential
	OAuth2CredentialCollection
	OAuth2ServerSettings
	OAuth2ServerSettingsCollection
	OperationLimits	Stores the operation limits of a OPC UA Server.
	Profiles	Common profiles that UA applications may support.
	PropertyState	A typed base class for all data variable nodes.
	PropertyState<T>	A typed base class for all data variable nodes.
	PropertyTypeState	A base class for all property variable type nodes.
	PropertyTypeState<T>	A typed base class for all property variable type nodes.
	QualifiedName	A name qualified with a namespace.
	QualifiedNameCollection	A collection of QualifiedName objects.
	ReadOnlyList<T>	A template list class that can be used to expose members of immutable classes.
	ReferenceCollection	A table of references for a node.
	ReferenceTypeState	The base class for all reference type nodes.
	RelativePathFormatter	A class that stores a relative path string
	RelativePathFormatter.Element	A element in a relative path string.
	ReverseConnectClient	Stores the configuration of the reverse connections.
	ReverseConnectClientCollection	A collection of reverse connect clients.
	ReverseConnectClientConfiguration	Stores the configuration of the reverse connections.
	ReverseConnectClientEndpoint	Stores the configuration of the reverse connections.
	ReverseConnectClientEndpointCollection	A collection of reverse connect client endpoints.
	ReverseConnectEndpoint	Stores the reverse connect information for an endpoint.
	ReverseConnectHost	Reverse Connect Client Host.
	ReverseConnectServerConfiguration	Stores the configuration of the reverse connections.
	SamplingRateGroup	A class that defines a group of sampling rates supported by the server.
	SamplingRateGroupCollection	A collection of SamplingRateGroup objects.
	SByteCollection	A collection of SByte values.
	SecureChannelContext	Stores context information for the current secure channel.
	SecurityAlgorithms	Defines constants for key security policies.
	SecurityConfiguration	The security configuration for the application. The security configuration for the application.
	SecurityPolicies	Defines constants for key security policies.
	ServerBase	A base class for a UA server implementation.
	ServerBaseConfiguration	Specifies the configuration for a server application. Specifies the configuration for a server application.
	ServerConfiguration	Specifies the configuration for a server application. Specifies the configuration for a server application.
	ServerProperties	The properties of the current server instance.
	ServerRegistration	Specifies the configuration for a discovery server application.
	ServerRegistrationCollection	A collection of AdditionalServerRegistrationInfo objects.
	ServerSecurityPolicy	A class that defines a group of security policies supported by the server.
	ServerSecurityPolicyCollection	A collection of ServerSecurityPolicy objects.
	ServiceHost	A host for a UA service.
	ServiceMessageContext	Stores context information associated with a session is used during message processing.
	ServiceResult	A class that combines the status code and diagnostic info structures.
	ServiceResultException	An exception thrown when a UA defined error occurs.
	SessionLessServiceMessage	A session-less service message.
	SoftwareCertificate	The SoftwareCertificate class.
	StatusCodeCollection	A collection of StatusCodes.
	StringCollection	A collection of String values.
	StringTable	A thread safe table of string constants.
	SystemContext	A generic implementation for ISystemContext interface.
	TraceConfiguration	Specifies parameters used for tracing. Specifies parameters used for tracing.
	TraceEventArgs	The event arguments provided when a trace event is raised.
	TraceEventLogger	The TraceEvent logger calls the legacy Utils.Trace API to support applications which use TraceEvent or file/debug logging.
	Tracing	Used as underlying tracing object for event processing.
	TranslationInfo	Stores the information requires to translate a string.
	TransportChannelSettings	Stores the configuration settings for a channel.
	TransportConfiguration	Specifies the configuration information for a transport protocol
	TransportConfigurationCollection	A collection of TransportConfiguration objects.
	TransportListenerSettings	Stores the configuration settings for a channel.
	TransportQuotas	Specifies various limits that apply to the transport or secure channel layers.
	TypeInfo	Stores information about a type.
	TypeInfo.Arrays	Constants for one dimensional array types.
	TypeInfo.Scalars	Constants for scalar types.
	TypeTable	Stores the type tree for a server.
	UaChannelBase	A base class for UA channel objects used to access UA interfaces
	UaChannelBase<TChannel>	A base class for UA channel objects used access UA interfaces
	UInt16Collection	A collection of UInt16 values.
	UInt32Collection	A collection of UInt32 values.
	UInt64Collection	A collection of UInt64 values.
	UserIdentity	A generic user identity class.
	Utils	Logger Utils methods. Defines various static utility functions.
	Utils.Nonce	Cryptographic Nonce helper functions.
	Utils.TraceMasks	The masks used to filter trace messages.
	UuidCollection	A collection of Uuids.
	ValueRanks	Constants defined for the ValueRank attribute.
	VariantCollection	A collection of Variant objects.
	ViewState	The base class for all view nodes.
	ViewTable	The table of all reference types known to the server.
	X509CertificateStore	Provides access to a simple X509Store based certificate store.
	X509Utils	Utility functions for X509 certificates.
	XmlDecoder	Reads objects from a XML stream.
	XmlElementCollection	A collection of XmlElement values.
	XmlEncoder	Writes objects to a XML stream.

Interfaces

	Interface	Description
	IAdvancedFilterTarget	This interface is used by ContentFilterOperation to get values from the NodeSet for use by the various filter operators. All NodeSets used in a ContentFilter must implement this interface.
	IAuditEventCallback	This is an interface to an object that receives audit event notifications.
	ICertificatePasswordProvider	An interface for a password provider for certificate private keys.
	ICertificateStore	An abstract interface to certificate stores.
	ICertificateStoreType	Supports implementation for custom certificate store type.
	ICertificateValidator	An abstract interface to the certificate validator.
	IChannelBase	The base interface for client proxies.
	IChannelOutgoingRequest	An interface to an object that manages a request received from a client.
	IClientBase	The client side interface with a UA server.
	IComplexTypeInstance	Interface implemented by complex data type instances.
	IDataType	An interface to an object that describes a DataType node.
	IDecoder	Defines functions used to dencode objects from a stream.
	IDynamicComplexTypeInstance	Interface implemented by complex data type instances that discover and provide type information dynamically
	IEncodeable	Defines methods used to encode and decode objects.
	IEncodeableFactory	Creates encodeable objects based on the type id.
	IEncoder	Defines functions used to encode objects in a stream.
	IEndpointBase	The base asynchronous interface for all services exposed by UA servers.
	IEndpointIncomingRequest	An interface to an object that manages a request received from a client.
	IFilterTarget	This interface is used by ContentFilterOperation to get values from the NodeSet for use by the various filter operators. All NodeSets used in a ContentFilter must implement this interface.
	IJsonDecoder	A Json decoder extension to handle arrays and structures.
	IJsonEncodeable	Defines extensions to support the JSON encoding.
	IJsonEncoder	Interface for extended methods for JSON encoders based on IEncoder.
	ILocalNode	An interface to an object that describes a node local to the server.
	IMethod	An interface to an object that describes a DataType node.
	INode	An interface to an object that describes a node.
	INodeBrowser	An interface to an object that browses the references of an node.
	INodeIdFactory	An interface that can be used to create new node ids.
	INodeTable	Provides context information to used when evaluating filters.
	IObject	An interface to an object that describes an Object node.
	IObjectType	An interface to an object that describes an ObjectType node.
	IOperationContext	An interface to an object that describes a node local to the server.
	IReference	A reference to a node.
	IReferenceCollection	A reference to a node.
	IReferenceType	An interface to an object that describes a ReferenceType node.
	IServerBase	An interface to a service response message.
	IServiceHostBase	An interface for the service host object.
	IServiceMessage	An interface to a service message.
	IServiceMessageContext	Stores context information for message encoding and decoding.
	IServiceRequest	An interface to a service request.
	IServiceResponse	An interface to a service response.
	ISessionClient	The client side interface for a UA server.
	IStructureTypeInfo	Interface implemented by structured type instances.
	ISystemContext	An interface to an object that describes how access the system containing the data.
	ITranslatableObject	An interface to an object that can translate itself.
	ITranslationManager	An interface to an object that provides translations.
	ITransportChannel	This is an interface to a channel which supports
	ITransportListener	This is an interface to a listener which supports UA binary encoding.
	ITransportListenerCallback	This is an interface to an object that receives notifications from the listener when a message arrives.
	ITransportWaitingConnection	The arguments passed to the ConnectionWaiting event.
	ITypeTable	Stores the type tree for a server.
	IUserIdentity	An interface to an object with stores the identity of a user.
	IVariable	An interface to an object that describes a Variable node.
	IVariableBase	An interface to an object that describes either a Variable or a VariableType node.
	IVariableType	An interface to an object that describes a VariableType node.
	IView	An interface to an object that describes a View node.

Structures

	Structure	Description
	NumericRange	A class that stores a numeric range.
	StatusCode	A numeric code that describes the result of a service or operation.
	Uuid	A wrapper for a GUID used during object serialization.
	Variant	A structure that could contain value with any of the UA built-in data types.

Delegates

	Delegate	Description
	AlarmConditionShelveEventHandler	Used to receive notifications when a alarm is shelved or unshelved.
	AlarmConditionTimedUnshelveEventHandler	Used to receive notifications when the timed shelve period elapses for an alarm.
	AlarmConditionUnshelveTimeValueEventHandler	Used to receive notifications when the shelving state is either OneShotShelved or TimedShelved. Updates the value of the UnshelveTime
	CertificateUpdateEventHandler	Used to handle certificate update events.
	CertificateValidationEventHandler	Used to handled certificate validation errors.
	ChannelSendRequestEventHandler	A delegate used to dispatch outgoing service requests.
	ConditionAddCommentEventHandler	Used to receive notifications when a comment is added.
	ConditionEnableEventHandler	Used to receive notifications when a condition is enabled or disabled.
	ConnectionWaitingHandlerAsync	The delegate for the async connection waiting handler.
	DialogResponseEventHandler	Used to receive notifications when the dialog receives a response.
	GenericMethodCalledEventHandler	Used to process a method call.
	GenericMethodCalledEventHandler2	Used to process a method call.
	Matrix.ValidateDimensionsFunction	A function that performes a validation on a given index into the dimensions array
	NodeAttributeEventHandler<T>	Used to receive notifications when a non-value attribute is read or written.
	NodeStateChangedHandler	Used to receive notifications when a non-value attribute is read or written.
	NodeStateConditionRefreshEventHandler	Used to receive notifications when a node needs to refresh its conditions.
	NodeStateConstructDelegate	A delegate which creates a new node.
	NodeStateCreateBrowserEventHandler	Used to receive notifications when a node browser is created.
	NodeStatePopulateBrowserEventHandler	Used to receive notifications when a node is browsed.
	NodeStateReferenceAdded	Used to receive notifications when a reference get added to the node
	NodeStateReferenceRemoved	Used to receive notifications when a reference get removed to the node
	NodeStateReportEventHandler	Used to receive notifications when a node produces an event.
	NodeStateValidateHandler	Used to validate a node.
	NodeValueEventHandler	Used to receive notifications when the value attribute is read or written.
	NodeValueSimpleEventHandler	Used to receive notifications when the value attribute is read or written.
	StateMachineTransitionHandler	A delegate used to receive notifications when a state machine transition occurs.
	TypeInfo.CastArrayElementHandler	A delegate for a function that converts an array element.
	VariableValueEventHandler	Used to receive notifications when the value attribute is read or written.

Enumerations

	Enumeration	Description
	AggregateBits	Flags that are set by the historian when returning archived values.
	BinaryEncodingSupport	The type of binary encoding support allowed by a channel.
	BuiltInType	The set of built-in data types for UA type descriptions.
	CertificateValidationOptions	Options that can be used to suppress certificate validation errors.
	DiagnosticsMasks	The DiagnosticsMasks enumeration.
	EncodingType	The type of encoding used by an encoder/decoder.
	EventSeverity	The severity for an event.
	ExtensionObjectEncoding	The types of encodings that may used with an object.
	IssuedTokenType	The issued token type.
	JsonEncodingType	The type of JSON encoding to use.
	LimitAlarmStates	The possible states for a limit alarm.
	LimitBits	Flags that are set to indicate the limit status of the value.
	NodeState.AttributesToSave	Flags which control the serialization of a NodeState in a stream.
	NodeStateChangeMasks	Indicates what has changed in a node.
	RelativePathFormatter.ElementType	The type of relative path element.
	RequestEncoding	The message encoding used with a request.
	ServiceHostState	The state of the service host.
	TransportChannelFeatures	The masks for the optional features which may not be supported by every transport channel.
	Utils.TraceOutput	The possible trace output mechanisms.
	VariableCopyPolicy	Specifies the policies to use when handling reads and write to value.

Reference

Opc.Ua.Core Assembly