OPC Studio User's Guide and Reference
UAFileTransferNodeTreePosition Constructor(UAFileTransferNodeTreePosition,Exception,UANodeDescriptor,String,Boolean)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.FileTransfer.Graphs Namespace > UAFileTransferNodeTreePosition Class > UAFileTransferNodeTreePosition Constructor : UAFileTransferNodeTreePosition Constructor(UAFileTransferNodeTreePosition,Exception,UANodeDescriptor,String,Boolean)
The parent object in the tree.

The value of this parameter can be null (Nothing in Visual Basic).

The exception encountered during browsing.

The value of this parameter can be null (Nothing in Visual Basic).

The node descriptor of the file or directory object.

Because the OpcLabs.EasyOpc.UA.UANodeDescriptor has implicit conversions from OpcLabs.EasyOpc.UA.AddressSpace.UANodeId, OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement, OpcLabs.EasyOpc.UA.Navigation.UABrowsePath and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object (representing the Id of the OPC UA node), a node element object (from OPC UA browsing), OpcLabs.EasyOpc.UA.Navigation.UABrowsePath object (representing OPC UA absolute browse path), or a string (with expanded node Id text) in place of this parameter, and the corresponding node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.UANodeDescriptor.FromString, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUABrowsePath, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeElement or OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeId static method instead.

If you are using OPC Wizard (for server development), an implicit conversion from OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode can be used in the same way to simply pass the server node in place of this parameter, which will use its OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode.EffectiveNodeDescriptor property for the operation.

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

Name of the file or directory represented by this position.

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

Determines whether the node represents a directory.
Initializes a new instance of the class, specifying its individual properties.
Syntax
'Declaration
 
Public Function New( _
   ByVal parentPosition As UAFileTransferNodeTreePosition, _
   ByVal browseException As Exception, _
   ByVal nodeDescriptor As UANodeDescriptor, _
   ByVal name As String, _
   ByVal isDirectory As Boolean _
)
'Usage
 
Dim parentPosition As UAFileTransferNodeTreePosition
Dim browseException As Exception
Dim nodeDescriptor As UANodeDescriptor
Dim name As String
Dim isDirectory As Boolean
 
Dim instance As New UAFileTransferNodeTreePosition(parentPosition, browseException, nodeDescriptor, name, isDirectory)

Parameters

parentPosition
The parent object in the tree.

The value of this parameter can be null (Nothing in Visual Basic).

browseException
The exception encountered during browsing.

The value of this parameter can be null (Nothing in Visual Basic).

nodeDescriptor
The node descriptor of the file or directory object.

Because the OpcLabs.EasyOpc.UA.UANodeDescriptor has implicit conversions from OpcLabs.EasyOpc.UA.AddressSpace.UANodeId, OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement, OpcLabs.EasyOpc.UA.Navigation.UABrowsePath and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object (representing the Id of the OPC UA node), a node element object (from OPC UA browsing), OpcLabs.EasyOpc.UA.Navigation.UABrowsePath object (representing OPC UA absolute browse path), or a string (with expanded node Id text) in place of this parameter, and the corresponding node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.UANodeDescriptor.FromString, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUABrowsePath, OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeElement or OpcLabs.EasyOpc.UA.UANodeDescriptor.FromUANodeId static method instead.

If you are using OPC Wizard (for server development), an implicit conversion from OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode can be used in the same way to simply pass the server node in place of this parameter, which will use its OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode.EffectiveNodeDescriptor property for the operation.

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

name
Name of the file or directory represented by this position.

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

isDirectory
Determines whether the node represents a directory.
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