OPC Studio User's Guide and Reference
EasyUAClientSessionConnectionEventArgs Constructor(String,String,UANodeId)



OpcLabs.ServerOpcUA Assembly > OpcLabs.EasyOpc.UA.OperationModel Namespace > EasyUAClientSessionConnectionEventArgs Class > EasyUAClientSessionConnectionEventArgs Constructor : EasyUAClientSessionConnectionEventArgs Constructor(String,String,UANodeId)
The URL string of the endpoint the client session is or was using.

The value of this parameter cannot be null (Nothing in Visual Basic).

The OPC UA session name.

The value of this parameter cannot be null (Nothing in Visual Basic).

The OPC UA session Id.

Because the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId has an implicit conversion from System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the expanded text of the nodeId) in place of this parameter, and the corresponding OPC UA node Id will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId.UANodeId Constructor(String) constructor instead.

The value of this parameter cannot be null (Nothing in Visual Basic).

Initializes a new instance of the class, with given endpoint URL string, session name and session Id.
Syntax
'Declaration
 
Public Function New( _
   ByVal endpointUrlString As String, _
   ByVal sessionName As String, _
   ByVal sessionId As UANodeId _
)
'Usage
 
Dim endpointUrlString As String
Dim sessionName As String
Dim sessionId As UANodeId
 
Dim instance As New EasyUAClientSessionConnectionEventArgs(endpointUrlString, sessionName, sessionId)
public EasyUAClientSessionConnectionEventArgs( 
   string endpointUrlString,
   string sessionName,
   UANodeId sessionId
)
public:
EasyUAClientSessionConnectionEventArgs( 
   String^ endpointUrlString,
   String^ sessionName,
   UANodeId^ sessionId
)

Parameters

endpointUrlString
The URL string of the endpoint the client session is or was using.

The value of this parameter cannot be null (Nothing in Visual Basic).

sessionName
The OPC UA session name.

The value of this parameter cannot be null (Nothing in Visual Basic).

sessionId
The OPC UA session Id.

Because the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId has an implicit conversion from System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the expanded text of the nodeId) in place of this parameter, and the corresponding OPC UA node Id will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId.UANodeId Constructor(String) constructor instead.

The value of this parameter cannot be null (Nothing in Visual Basic).

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.

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