QuickOPC User's Guide and Reference
DAItemDescriptor Constructor(String,String,BrowsePath,VarType,String)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAItemDescriptor Class > DAItemDescriptor Constructor : DAItemDescriptor Constructor(String,String,BrowsePath,VarType,String)
Contains node path (empty string for the root, null reference if unknown). Only used with OPC XML.
Contains OPC item identifier.
Contains the browse path for the OPC item.
Specifies the data type requested. Passing OpcLabs.BaseLib.ComInterop.VarTypes.Empty means that the server's canonical data type should be used.
An optional data path suggestion to the server.
Initializes a new instance of the DAItemDescriptor class.Initializes a new instance of the class, with specified node path (may be null), item identifier (may be null), browse path (may be empty), data type and access path.
Syntax
'Declaration
 
Public Function New( _
   ByVal nodePath As String, _
   ByVal itemId As String, _
   ByVal browsePath As BrowsePath, _
   ByVal requestedDataType As VarType, _
   ByVal accessPath As String _
)
'Usage
 
Dim nodePath As String
Dim itemId As String
Dim browsePath As BrowsePath
Dim requestedDataType As VarType
Dim accessPath As String
 
Dim instance As New DAItemDescriptor(nodePath, itemId, browsePath, requestedDataType, accessPath)

Parameters

nodePath
Contains node path (empty string for the root, null reference if unknown). Only used with OPC XML.
itemId
Contains OPC item identifier.
browsePath
Contains the browse path for the OPC item.
requestedDataType
Specifies the data type requested. Passing OpcLabs.BaseLib.ComInterop.VarTypes.Empty means that the server's canonical data type should be used.
accessPath
An optional data path suggestion to the server.
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

DAItemDescriptor Class
DAItemDescriptor Members
Overload List