QuickOPC User's Guide and Reference
DAReadParameters Constructor(DADataSource)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAReadParameters Class > DAReadParameters Constructor : DAReadParameters Constructor(DADataSource)
Selects the data source for OPC reads (from device, from OPC cache, or dynamically determined).
Initializes a new instance of the DAReadParameters class.Initializes a new instance of the DAReadParameters object from a given DADataSource.
Syntax
'Declaration
 
Public Function New( _
   ByVal dataSource As DADataSource _
)
'Usage
 
Dim dataSource As DADataSource
 
Dim instance As New DAReadParameters(dataSource)
public DAReadParameters( 
   DADataSource dataSource
)
public:
DAReadParameters( 
   DADataSource dataSource
)

Parameters

dataSource
Selects the data source for OPC reads (from device, from OPC cache, or dynamically determined).
Exceptions
ExceptionDescription

An invalid enumeration value was used.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

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