OPC Studio User's Guide and Reference
Empty Property (UAQualifiedNameCollection)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.AddressSpace Namespace > UAQualifiedNameCollection Class : Empty Property
An empty qualified name collection.
Syntax
'Declaration
 
<NotNullAttribute()>
Public Shared ReadOnly Property Empty As UAQualifiedNameCollection
'Usage
 
Dim value As UAQualifiedNameCollection
 
value = UAQualifiedNameCollection.Empty
[NotNull()]
public static UAQualifiedNameCollection Empty {get;}
[NotNull()]
public:
static property UAQualifiedNameCollection^ Empty {
   UAQualifiedNameCollection^ get();
}

Property Value

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

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

Because the OpcLabs.EasyOpc.UA.Navigation.UABrowsePathElementCollection has an implicit conversion from UAQualifiedNameCollection, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned UAQualifiedNameCollection (containing a sequence of qualified names, assumed to form a relative browse path using "any hierarchical" forward references) in any place where OpcLabs.EasyOpc.UA.Navigation.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 OpcLabs.EasyOpc.UA.Navigation.UABrowsePathElementCollection.FromUAQualifiedNameCollection static method instead.

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