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



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UAEndpointDescriptor Class : IsNull Property
Determines whether the OPC-UA endpoint descriptor is null.
Syntax
'Declaration
 
<DebuggerBrowsableAttribute(DebuggerBrowsableState.Never)>
<DefaultValueAttribute(True)>
<IsValueEvidentAttribute(True)>
Public Shadows ReadOnly Property IsNull As Boolean
'Usage
 
Dim instance As UAEndpointDescriptor
Dim value As Boolean
 
value = instance.IsNull
[DebuggerBrowsable(DebuggerBrowsableState.Never)]
[DefaultValue(true)]
[IsValueEvident(true)]
public new bool IsNull {get;}
[DebuggerBrowsable(DebuggerBrowsableState.Never)]
[DefaultValue(true)]
[IsValueEvident(true)]
public:
new property bool IsNull {
   bool get();
}

Property Value

Returns true if this OPC-UA endpoint descriptor is null; otherwise, returns false.
Remarks
An OPC-UA endpoint descriptor is considered empty it has its initial scheme, the remaining parts of the URL string are empty, and its remaining new properties are at their default values.
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