OPC Studio User's Guide and Reference
HasValue Property (UADataValue)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UADataValue Class : HasValue Property
Determines whether there is a valid value in the data value (depends on the status code).
Syntax
'Declaration
 
Public ReadOnly Property HasValue As Boolean
'Usage
 
Dim instance As UADataValue
Dim value As Boolean
 
value = instance.HasValue
public bool HasValue {get;}
public:
property bool HasValue {
   bool get();
}

Property Value

True if there is a valid value in the data value; false otherwise.

The default value of this property is True.

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