UAReadArguments Constructor(UAEndpointDescriptor,UANodeDescriptor,UAAttributeId,UAReadParameters)

Visual Basic
C#
C++/CLI

'Declaration
 
Public Function New( _
   ByVal endpointDescriptor As UAEndpointDescriptor, _
   ByVal nodeDescriptor As UANodeDescriptor, _
   ByVal attributeId As UAAttributeId, _
   ByVal readParameters As UAReadParameters _
)

'Usage
 
Dim endpointDescriptor As UAEndpointDescriptor
Dim nodeDescriptor As UANodeDescriptor
Dim attributeId As UAAttributeId
Dim readParameters As UAReadParameters
 
Dim instance As New UAReadArguments(endpointDescriptor, nodeDescriptor, attributeId, readParameters)

public UAReadArguments( 
   UAEndpointDescriptor endpointDescriptor,
   UANodeDescriptor nodeDescriptor,
   UAAttributeId attributeId,
   UAReadParameters readParameters
)

public:
UAReadArguments( 
   UAEndpointDescriptor^ endpointDescriptor,
   UANodeDescriptor^ nodeDescriptor,
   UAAttributeId attributeId,
   UAReadParameters^ readParameters
)

Parameters

endpointDescriptor: Endpoint descriptor. Identifies the OPC-UA server.
nodeDescriptor: Node descriptor. Identifies the node in OPC server's address space.
attributeId: Attribute Id. Identifies an attribute of a node.
readParameters: Contains parameters for OPC-UA read operations, such as the maximum age of the value.

Exception Description

Exception	Description
System.ArgumentNullException	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.
System.ComponentModel.InvalidEnumArgumentException	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.

System.ArgumentNullException

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.

System.ComponentModel.InvalidEnumArgumentException

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.

You can obtain nodeDescriptor e.g. by calling one of the browsing methods on OpcLabs.EasyOpc.UA.EasyUAClientCore object.

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

Reference

UAReadArguments Class
UAReadArguments Members
Overload List