OPC Studio User's Guide and Reference
TryParse(String,Boolean,UANodeId) Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.AddressSpace.Parsing Namespace > UANodeIdParser Class : TryParse(String,Boolean,UANodeId) Method
Expanded text of the node Id.
Determines whether the node Id must contain a namespace or namespace index.
A OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object. The converted node Id object.
Converts the string representation of an OPC-UA node Id to equivalent node Id object. A return value indicates whether the conversion succeeded.
Syntax
'Declaration
 
Public Function TryParse( _
   ByVal s As String, _
   ByVal requireNamespace As Boolean, _
   ByRef nodeId As UANodeId _
) As IStringParsingError
'Usage
 
Dim instance As UANodeIdParser
Dim s As String
Dim requireNamespace As Boolean
Dim nodeId As UANodeId
Dim value As IStringParsingError
 
value = instance.TryParse(s, requireNamespace, nodeId)

Parameters

s
Expanded text of the node Id.
requireNamespace
Determines whether the node Id must contain a namespace or namespace index.
nodeId
A OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object. The converted node Id object.

Return Value

Returns null if s was converted successfully; otherwise, returns an error object that describes the problem.
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