QuickOPC User's Guide and Reference
DAReadParameters Constructor(DADataSource,Int32)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAReadParameters Class > DAReadParameters Constructor : DAReadParameters Constructor(DADataSource,Int32)
Selects the data source for OPC reads (from device, from OPC cache, or dynamically determined).
Determines the age of value you would like to obtain (in milliseconds).
Initializes a new instance of the DAReadParameters class.Initializes a new instance of the DAReadParameters object from a given DADataSource and a value age.
Syntax
'Declaration
 
Public Function New( _
   ByVal dataSource As DADataSource, _
   ByVal valueAge As Integer _
)
'Usage
 
Dim dataSource As DADataSource
Dim valueAge As Integer
 
Dim instance As New DAReadParameters(dataSource, valueAge)
public DAReadParameters( 
   DADataSource dataSource,
   int valueAge
)
public:
DAReadParameters( 
   DADataSource dataSource,
   int valueAge
)

Parameters

dataSource
Selects the data source for OPC reads (from device, from OPC cache, or dynamically determined).
valueAge
Determines the age of value you would like to obtain (in milliseconds).
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

See Also

Reference

DAReadParameters Class
DAReadParameters Members
Overload List