OPC Studio User's Guide and Reference
Write(IEnumerable<IDAClientMapping>) Method



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace > DAClientMapper Class > Write Method : Write(IEnumerable<IDAClientMapping>) Method
The mappings to be operated upon.
Executes the "Write" operation on given mappings.
Syntax
'Declaration
 
Public Overloads Sub Write( _
   ByVal mappings As IEnumerable(Of IDAClientMapping) _
) 
'Usage
 
Dim instance As DAClientMapper
Dim mappings As IEnumerable(Of IDAClientMapping)
 
instance.Write(mappings)

Parameters

mappings
The mappings to be operated upon.
Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

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.

The component is not licensed for the operation requested.
Remarks
The "Write" operation writes a value from the mapping source into an OPC item. Only mappings of type DAClientItemMapping that include DAItemMappingOperations.Write in their DAClientItemMapping.Operations are affected; other mappings are ignored.
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