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



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UANodeDescriptor Class : IsNull Property
Determines whether the node descriptor is null, i.e. specifies neither node ID nor a browse path.
Syntax
'Declaration
 
<XmlIgnoreAttribute()>
Public ReadOnly Property IsNull As Boolean
'Usage
 
Dim instance As UANodeDescriptor
Dim value As Boolean
 
value = instance.IsNull
[XmlIgnore()]
public bool IsNull {get;}
[XmlIgnore()]
public:
property bool IsNull {
   bool get();
}

Property Value

The default value of this property is True.

Remarks

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

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