'Declaration
<CanBeNullAttribute()> <ContractAnnotationAttribute("null => null; notnull => notnull")> Public Shared Function FromUANodeElement( _ ByVal nodeElement As IUANodeElement _ ) As UANodeDescriptor
'Usage
Dim nodeElement As IUANodeElement Dim value As UANodeDescriptor value = UANodeDescriptor.FromUANodeElement(nodeElement)
[CanBeNull()] [ContractAnnotation("null => null; notnull => notnull")] public static UANodeDescriptor FromUANodeElement( IUANodeElement nodeElement )
[CanBeNull()] [ContractAnnotation("null => null; notnull => notnull")] public: static UANodeDescriptor^ FromUANodeElement( IUANodeElement^ nodeElement )
Parameters
- nodeElement
- The node element to be converted.
This is typically the OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement object.
The value of this parameter can be
null
(Nothing
in Visual Basic).
Return Value
null
if the input is null
.
Because there are implicit conversions to OpcLabs.EasyOpc.UA.Navigation.UANamedNodeDescriptor and OpcLabs.EasyOpc.UA.Navigation.UANamedNodePath from UANodeDescriptor, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned UANodeDescriptor in any place where OpcLabs.EasyOpc.UA.Navigation.UANamedNodeDescriptor is expected (in this case the UANodeDescriptor contains the final node descriptor) or where OpcLabs.EasyOpc.UA.Navigation.UANamedNodePath is expected (in this case the UANodeDescriptor contains the base and only node in the named node path), and the corresponding OPC UA named node descriptor or named node path will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.Navigation.UANamedNodeDescriptor.FromUANodeDescriptor or OpcLabs.EasyOpc.UA.Navigation.UANamedNodePath.FromUANodeDescriptor static method instead.
This method can return null
(Nothing
in Visual Basic).