OPC Studio User's Guide and Reference
LifetimeCount Property (_UAClientSubscriptionParameters)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Engine.ComTypes Namespace > _UAClientSubscriptionParameters Interface : LifetimeCount Property
Number of missing publishing cycles before the server closes the subscription.
Syntax
'Declaration
 
Property LifetimeCount As Integer
'Usage
 
Dim instance As _UAClientSubscriptionParameters
Dim value As Integer
 
instance.LifetimeCount = value
 
value = instance.LifetimeCount
int LifetimeCount {get; set;}
property int LifetimeCount {
   int get();
   void set (    int value);
}

Property Value

Valid values of this property are in the range from 1 to 2147483647 (Int32.MaxValue).

The default value of this property is 1000.

Exceptions
ExceptionDescription

The value of an argument is outside the allowable range of values as defined by the invoked method.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

Lifetime: Server monitors the Client, whether it sends the Publish.

In order to obtain or modify this parameter, in the default state (when OpcLabs.EasyOpc.UA.EasyUAClientCore.Isolated equals to false), access OpcLabs.EasyOpc.UA.Engine.UAClientAdaptableParameters.SubscriptionParameters property of static OpcLabs.EasyOpc.UA.EasyUAClientCore.AdaptableParameters. If you have set OpcLabs.EasyOpc.UA.EasyUAClientCore.Isolated to true, you need to access OpcLabs.EasyOpc.UA.Engine.UAClientAdaptableParameters.SubscriptionParameters property of OpcLabs.EasyOpc.UA.EasyUAClientCore.IsolatedParameters.

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

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

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