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



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.AddressSpace Namespace > IUANodeId Interface : IsNull Property
Determines whether the node Id is null.
Syntax
'Declaration
 
<DefaultValueAttribute(True)>
ReadOnly Property IsNull As Boolean
'Usage
 
Dim instance As IUANodeId
Dim value As Boolean
 
value = instance.IsNull
[DefaultValue(true)]
bool IsNull {get;}
[DefaultValue(true)]
property bool IsNull {
   bool get();
}
Remarks
An OPC-UA node Id is considered null when its NamespaceUriString is empty, and its node Id type is UANodeIdType.None.
Requirements

Target Platforms: .NET Framework: Windows 10, Windows Server 2012; .NET Core: Linux, macOS, Microsoft Windows

See Also

Reference

IUANodeId Interface
IUANodeId Members