| 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. |
OPC Studio User's Guide and Reference
OpcLabs.EasyOpc.DataAccess.OperationModel Namespace