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



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
 
Public Property DiscardOldest As Boolean
'Usage
 
Dim instance As UAMonitoringParameters
Dim value As Boolean
 
instance.DiscardOldest = value
 
value = instance.DiscardOldest
public bool DiscardOldest {get; set;}
public:
property bool DiscardOldest {
   bool get();
   void set (    bool value);
}

Property Value

The default value of this property is True.

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:

The getter method of this property is pure, i.e. it does not have observable side effects.

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