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



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAVtq Class : HasValue Property
Returns whether the Value contains valid data.
Syntax
'Declaration
 
<DefaultValueAttribute(False)>
Public ReadOnly Property HasValue As Boolean
'Usage
 
Dim instance As DAVtq
Dim value As Boolean
 
value = instance.HasValue
[DefaultValue(false)]
public bool HasValue {get;}
[DefaultValue(false)]
public:
property bool HasValue {
   bool get();
}

Property Value

Returns True when the Quality is not Bad.
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