OPC Studio User's Guide and Reference
Parse(UABrowsePath,String,String) Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Navigation Namespace > UABrowsePath Class > Parse Method : Parse(UABrowsePath,String,String) Method
The base path for relative input paths. A null browse path if none given.

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

The string containing the browse path to be parsed.

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

The namespace URI to be used with all elements that do not explicitly specify a namespace.

The value represents an OPC UA namespace URI string. Any string can be passed to this parameter (i.e. will not cause System.ArgumentException), but not all values make sense and will work when an operation using them is attempted.

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

Parses a string containing a browse path, optionally given a base for relative paths, and returns a corresponding browse path object.
Syntax
'Declaration
 
<NotNullAttribute()>
Public Overloads Shared Function Parse( _
   ByVal basePath As UABrowsePath, _
   ByVal value As String, _
   ByVal defaultNamespaceUriString As String _
) As UABrowsePath
'Usage
 
Dim basePath As UABrowsePath
Dim value As String
Dim defaultNamespaceUriString As String
Dim value As UABrowsePath
 
value = UABrowsePath.Parse(basePath, value, defaultNamespaceUriString)

Parameters

basePath
The base path for relative input paths. A null browse path if none given.

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

value
The string containing the browse path to be parsed.

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

defaultNamespaceUriString
The namespace URI to be used with all elements that do not explicitly specify a namespace.

The value represents an OPC UA namespace URI string. Any string can be passed to this parameter (i.e. will not cause System.ArgumentException), but not all values make sense and will work when an operation using them is attempted.

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

Return Value

Because there is an implicit conversion from UABrowsePath to OpcLabs.EasyOpc.UA.UANodeDescriptor, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned UABrowsePath in any place where the OpcLabs.EasyOpc.UA.UANodeDescriptor is expected as input, and the corresponding node descriptor will be constructed automatically.

This method never returns 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.

Thrown when the OPC UA browse path cannot be parsed.
Remarks
If no base path is given, the input browse path must be absolute.
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