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



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Navigation Namespace > UABrowsePath Class > TryCombine Method : TryCombine(String,String) Method
The relative browse path string that the current browse path is to be combined with.

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).

Attempts to combine the current OPC-UA browse path with a given browse path string.
Syntax
'Declaration
 
<CanBeNullAttribute()>
Public Overloads Function TryCombine( _
   ByVal more As String, _
   ByVal defaultNamespaceUriString As String _
) As IStringParsingError
'Usage
 
Dim instance As UABrowsePath
Dim more As String
Dim defaultNamespaceUriString As String
Dim value As IStringParsingError
 
value = instance.TryCombine(more, defaultNamespaceUriString)
[CanBeNull()]
public IStringParsingError TryCombine( 
   string more,
   string defaultNamespaceUriString
)
[CanBeNull()]
public:
IStringParsingError^ TryCombine( 
   String^ more,
   String^ defaultNamespaceUriString
) 

Parameters

more
The relative browse path string that the current browse path is to be combined with.

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

Returns null if successful; otherwise, some OpcLabs.BaseLib.IStringParsingError indicating the reason of the failure.

This method can return 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.

Remarks

The method modifies the current OPC-UA browse path object by combining it with a browse path specified by a string.

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