OPC Studio User's Guide and Reference
DataSubscriptionSet Property



OpcLabs.ServerOpcUA Assembly > OpcLabs.EasyOpc.UA.NodeSpace Namespace > UADataVariable Class : DataSubscriptionSet Property
The current set of data subscriptions to this data variable.
Syntax
'Declaration
 
<BrowsableAttribute(False)>
<NotNullAttribute()>
Public ReadOnly Property DataSubscriptionSet As ISet(Of IUADataSubscription)
'Usage
 
Dim instance As UADataVariable
Dim value As ISet(Of IUADataSubscription)
 
value = instance.DataSubscriptionSet
[Browsable(false)]
[NotNull()]
public ISet<IUADataSubscription> DataSubscriptionSet {get;}
[Browsable(false)]
[NotNull()]
public:
property ISet<IUADataSubscription^>^ DataSubscriptionSet {
   ISet<IUADataSubscription^>^ get();
}

Property Value

A set of IUADataSubscription objects representing the current data subscriptions.

The value of this property cannot be null (Nothing in Visual Basic).

The individual elements of the property value cannot be null (Nothing in Visual Basic).

Remarks

This property provides access to the set of data subscriptions that are currently active for this variable.

The set returned by this property is a clone of the data subscription set made at the time of the call. It can therefore be accessed in a thread-safe manner.

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