OPC Studio User's Guide and Reference
DAClientItemSource Constructor(ServerDescriptor,DAItemDescriptor,DAGroupParameters)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace > DAClientItemSource Class > DAClientItemSource Constructor : DAClientItemSource Constructor(ServerDescriptor,DAItemDescriptor,DAGroupParameters)
The OPC server involved in the operation.
The OPC item involved in the operation.
An object containing subscription parameters, such as the requested update rate.
Initializes a new instance of the class, with given OPC server and item descriptors, and subscription (OPC group) parameters.
Syntax
'Declaration
 
Public Function New( _
   ByVal serverDescriptor As ServerDescriptor, _
   ByVal itemDescriptor As DAItemDescriptor, _
   ByVal groupParameters As DAGroupParameters _
)
'Usage
 
Dim serverDescriptor As ServerDescriptor
Dim itemDescriptor As DAItemDescriptor
Dim groupParameters As DAGroupParameters
 
Dim instance As New DAClientItemSource(serverDescriptor, itemDescriptor, groupParameters)

Parameters

serverDescriptor
The OPC server involved in the operation.
itemDescriptor
The OPC item involved in the operation.
groupParameters
An object containing subscription parameters, such as the requested update rate.
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