OPC Studio User's Guide and Reference
DefaultNodeId Property (UANodeDescriptor)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UANodeDescriptor Class : DefaultNodeId Property
Default node Id (empty one).
Syntax
'Declaration
 
<NotNullAttribute()>
Public Shared ReadOnly Property DefaultNodeId As UANodeId
'Usage
 
Dim value As UANodeId
 
value = UANodeDescriptor.DefaultNodeId
[NotNull()]
public static UANodeId DefaultNodeId {get;}
[NotNull()]
public:
static property UANodeId^ DefaultNodeId {
   UANodeId^ get();
}

Property Value

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

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

Also, because the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId has an implicit conversion to System.String, and it converts to the expanded text of the node Id (OpcLabs.EasyOpc.UA.AddressSpace.UANodeId.ExpandedText), in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned OpcLabs.EasyOpc.UA.AddressSpace.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.

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

See Also