QuickOPC User's Guide and Reference
AESubscriptionParameters Constructor(Boolean,Int32,AESubscriptionFilter,AEAttributeSetDictionary)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace > AESubscriptionParameters Class > AESubscriptionParameters Constructor : AESubscriptionParameters Constructor(Boolean,Int32,AESubscriptionFilter,AEAttributeSetDictionary)
Denotes active or inactive subscription.
Notification rate of the event subscription.
Filtering criteria for the event subscription.
Attributes to be returned with event notifications for each event category.
Initializes a new instance of the AESubscriptionParameters class.Initializes a new instance of the class, specifying the "active" flag, notification rate, subscription filter object, and returned attributes.
Syntax
'Declaration
 
Public Function New( _
   ByVal active As Boolean, _
   ByVal notificationRate As Integer, _
   ByVal filter As AESubscriptionFilter, _
   ByVal returnedAttributesByCategory As AEAttributeSetDictionary _
)
'Usage
 
Dim active As Boolean
Dim notificationRate As Integer
Dim filter As AESubscriptionFilter
Dim returnedAttributesByCategory As AEAttributeSetDictionary
 
Dim instance As New AESubscriptionParameters(active, notificationRate, filter, returnedAttributesByCategory)

Parameters

active
Denotes active or inactive subscription.
notificationRate
Notification rate of the event subscription.
filter
Filtering criteria for the event subscription.
returnedAttributesByCategory
Attributes to be returned with event notifications for each event category.
Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

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.

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.

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