Explicit Type Conversion Operator (UABrowsePathElementCollection)

Because the UABrowsePathElementCollection has an implicit conversion from OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedNameCollection, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedNameCollection (containing a sequence of qualified names, assumed to form a relative browse path using "any hierarchical" forward references) in place of this parameter, and the corresponding OPC UA browse path element collection will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromUAQualifiedNameCollection static method instead.

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

The individual elements of the parameter value cannot be null (Nothing in Visual Basic).

Converts the current relative path to a sequence of qualified names.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ContractAnnotationAttribute("null => null; notnull => notnull")>
<CanBeNullAttribute()>
Public Operator Narrowing CType( _
   ByVal browsePathElements As UABrowsePathElementCollection _
) As UAQualifiedNameCollection

'Usage

[ContractAnnotation("null => null; notnull => notnull")]
[CanBeNull()]
public UAQualifiedNameCollection operator explicit( 
   UABrowsePathElementCollection browsePathElements
)

[ContractAnnotation("null => null; notnull => notnull")]
[CanBeNull()]
public:
UAQualifiedNameCollection^ operator explicit( 
   UABrowsePathElementCollection^ browsePathElements
)

Parameters

browsePathElements

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

The individual elements of the parameter value cannot be null (Nothing in Visual Basic).

Return Value

When the input arguments is a null reference, returns a null reference. Otherwise, returns a qualified name collection that contains a sequence of qualified names that form a simple path.

Because the UABrowsePathElementCollection has an implicit conversion from OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedNameCollection, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedNameCollection (containing a sequence of qualified names, assumed to form a relative browse path using "any hierarchical" forward references) in any place where UABrowsePathElementCollection is expected as input, and the corresponding OPC UA browse path element collection will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromUAQualifiedNameCollection static method instead.

This method can return null (Nothing in Visual Basic).

The individual elements of the returned value are never null (Nothing in Visual Basic).

Exceptions

Exception Description

Exception	Description
System.ArgumentException	One of the arguments provided to a method is not valid. 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.
System.ArgumentNullException	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.

System.ArgumentException

One of the arguments provided to a method is not valid.

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.

System.ArgumentNullException

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 browse path element collection must represent a simple relative path. Such path must consist only of elements that specify a forward, any hierarchical reference.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

UABrowsePathElementCollection Class
UABrowsePathElementCollection Members

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