Explicit Type Conversion(UANodeId,UANodeElement) Operator

Converts a UANodeElement to a node Id.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<CanBeNullAttribute()>
<ContractAnnotationAttribute("null => null; notnull => notnull")>
Overloads Public Operator Narrowing CType( _
   ByVal nodeElement As UANodeElement _
) As UANodeId

'Usage

[CanBeNull()]
[ContractAnnotation("null => null; notnull => notnull")]
public UANodeId operator explicit( 
   UANodeElement nodeElement
)

[CanBeNull()]
[ContractAnnotation("null => null; notnull => notnull")]
public:
UANodeId^ operator explicit( 
   UANodeElement^ nodeElement
)

Parameters

nodeElement: The node element to be converted.
The value of this parameter can be null (Nothing in Visual Basic).

Return Value

For a non-null input, returns the node Id with expanded text from the node element. Returns null if the input is null.

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

Also, because the UANodeId has an implicit conversion to System.String, and it converts to the expanded text of the node Id (UANodeId.ExpandedText), in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned UANodeId in any place where expanded text of a node Id (a string) is expected as input, and the corresponding expanded text will be taken automatically from the node Id.

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

Remarks

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

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

UANodeElement Class
UANodeElement Members
Overload List

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