OPC Studio User's Guide and Reference
NodeDescriptor Property (AENodeArguments)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel Namespace > AENodeArguments Class : NodeDescriptor Property
A descriptor of a node in a server's address space.
Syntax
'Declaration
 
Public Property NodeDescriptor As AENodeDescriptor
'Usage
 
Dim instance As AENodeArguments
Dim value As AENodeDescriptor
 
instance.NodeDescriptor = value
 
value = instance.NodeDescriptor
public AENodeDescriptor NodeDescriptor {get; set;}
public:
property AENodeDescriptor^ NodeDescriptor {
   AENodeDescriptor^ get();
   void set (    AENodeDescriptor^ value);
}

Property Value

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

Remarks

The getter method of this property is pure, i.e. it does not have observable side effects.

Because the OpcLabs.EasyOpc.AlarmsAndEvents.AENodeDescriptor has an implicit conversion from System.String and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AENodeElement, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the qualified name of the node), or a OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AENodeElement object (result from OPC browsing), in place of OpcLabs.EasyOpc.AlarmsAndEvents.AENodeDescriptor value when setting this property, and the corresponding OPC A&E node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromString or FromAENodeElement 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