OPC Studio User's Guide and Reference
Retain Property (_UAPubSubHeader)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.ComTypes Namespace > _UAPubSubHeader Interface : Retain Property
Determines whether the dataset message is retained by the server.
Syntax
'Declaration
 
Property Retain As Boolean
'Usage
 
Dim instance As _UAPubSubHeader
Dim value As Boolean
 
instance.Retain = value
 
value = instance.Retain
bool Retain {get; set;}
property bool Retain {
   bool get();
   void set (    bool value);
}
Remarks

If the data consists of multiple parts, the value is true only if all parts are retained. Multiple-part data can appear e.g. with key and delta frames.

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