QuickOPC User's Guide and Reference
IsNull Property (UAPubSubObjectDescriptor)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub Namespace > UAPubSubObjectDescriptor Class : IsNull Property
Determines whether this object represents a null PubSub object descriptor.
Syntax
'Declaration
 
<DefaultValueAttribute(True)>
Public Overridable ReadOnly Property IsNull As Boolean
'Usage
 
Dim instance As UAPubSubObjectDescriptor
Dim value As Boolean
 
value = instance.IsNull
[DefaultValue(true)]
public virtual bool IsNull {get;}
[DefaultValue(true)]
public:
virtual property bool IsNull {
   bool get();
}
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