OpcLabs.EasyOpc.DataAccess.OperationModel Namespace

This namespace contains classes that are used to pass arguments to OPC Data Access operations and obtain the operation results.

Classes

	Class	Description
	DABrowseArguments	Holds arguments needed to browse OPC DA server nodes.
	DAHandleGroupArguments	Holds an integer handle, and OPC group parameters, as arguments to some operation.
	DAItemArguments	Holds an OPC server and item descriptor, as arguments to some operation.
	DAItemGroupArguments	Holds an OPC server and item descriptor, and OPC group parameters, as arguments to some operation.
	DAItemValueArguments	Holds an OPC server and item descriptor, and OPC group parameters, as arguments to some operation.
	DAItemVtqArguments	Holds an OPC server and item descriptor, and a value/timestamp/quality (OpcLabs.EasyOpc.DataAccess.DAVtq), as arguments to some operation.
	DANodeArguments	Holds all arguments needed to specify a node in an OPC-DA server.
	DANodeElementCollectionResult	Holds result of a Browse operation, i.e. the node elements obtained by browsing a node in OPC-DA Server's address space.
	DAPropertyArguments	Holds an OPC server, OPC node and OPC property descriptors, as arguments to some operation.
	DAReadItemArguments	Holds information necessary to read an OPC item, such OPC server and item descriptor, and read parameters.
	DAVtqResult	Holds result of an operation in form of a OpcLabs.EasyOpc.DataAccess.DAVtq (value, timestamp, and quality).
	EasyDAItemChangedEventArgs	Provides data for the EasyDAClient.ItemChanged event.
	EasyDAItemSubscriptionArguments	Holds an OPC server and item descriptor, and OPC group parameters, and possibly a callback method, as arguments to subscription operation.