OPC Studio User's Guide and Reference
DiscardOldest Property (UAMonitoringParameters)



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OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UAMonitoringParameters Class : DiscardOldest Property
Specifies whether to discard the oldest notification when a new notification is to be queued into a full queue.
Syntax
'Declaration
 
<DefaultValueAttribute(True)>
Public Property DiscardOldest As Boolean
 
'Usage
 
Dim instance As UAMonitoringParameters
Dim value As Boolean
 
instance.DiscardOldest = value
 
value = instance.DiscardOldest
Remarks

"A boolean parameter that specifies the discard policy when the queue is full and a new Notification is to be queued. It has the following values:

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