QuickOPC User's Guide and Reference
DAClientItemSource Constructor(ServerDescriptor,DAItemDescriptor,DAReadParameters)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace > DAClientItemSource Class > DAClientItemSource Constructor : DAClientItemSource Constructor(ServerDescriptor,DAItemDescriptor,DAReadParameters)
The OPC server involved in the operation.
The OPC item involved in the operation.
The read parameters (such as data source or value age).
Initializes a new instance of the class, with given OPC server and item descriptors, and read parameters.
Syntax
'Declaration
 
Public Function New( _
   ByVal serverDescriptor As ServerDescriptor, _
   ByVal itemDescriptor As DAItemDescriptor, _
   ByVal readParameters As DAReadParameters _
)
'Usage
 
Dim serverDescriptor As ServerDescriptor
Dim itemDescriptor As DAItemDescriptor
Dim readParameters As DAReadParameters
 
Dim instance As New DAClientItemSource(serverDescriptor, itemDescriptor, readParameters)

Parameters

serverDescriptor
The OPC server involved in the operation.
itemDescriptor
The OPC item involved in the operation.
readParameters
The read parameters (such as data source or value age).
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also