![](dotnetdiagramimages/OpcLabs_EasyOpcClassic_OpcLabs_EasyOpc_AlarmsAndEvents_Reactive_AENotificationObservable.png)
'Declaration
<ComVisibleAttribute(False)> <TypeConverterAttribute(System.ComponentModel.ExpandableObjectConverter)> <CLSCompliantAttribute(True)> <ValueControlAttribute("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", DefaultReadWrite=False, Export=True, PageId=10001)> <SerializableAttribute()> Public Class AENotificationObservable Inherits AEReactive Implements LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, System.ICloneable, System.IObservable(Of EasyAENotificationEventArgs), System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable
'Usage
Dim instance As AENotificationObservable
[ComVisible(false)] [TypeConverter(System.ComponentModel.ExpandableObjectConverter)] [CLSCompliant(true)] [ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", DefaultReadWrite=false, Export=true, PageId=10001)] [Serializable()] public class AENotificationObservable : AEReactive, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, System.ICloneable, System.IObservable<EasyAENotificationEventArgs>, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable
[ComVisible(false)] [TypeConverter(System.ComponentModel.ExpandableObjectConverter)] [CLSCompliant(true)] [ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", DefaultReadWrite=false, Export=true, PageId=10001)] [Serializable()] public ref class AENotificationObservable : public AEReactive, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, System.ICloneable, System.IObservable<EasyAENotificationEventArgs>, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable
// Shows how to create an observable for OPC-A&E notifications, and subscribe to it. using System; using System.Threading; using OpcLabs.EasyOpc.AlarmsAndEvents.Reactive; namespace ReactiveDocExamples { namespace _AENotificationObservable { class Subscribe { public static void Main1() { Console.WriteLine("Creating observable..."); AENotificationObservable events = AENotificationObservable.Create("", "OPCLabs.KitEventServer.2", 1000); Console.WriteLine("Subscribing..."); using (events.Subscribe(e => Console.WriteLine( (e.Exception is null) ? (e.EventData?.Message ?? "") : e.Exception.GetBaseException().ToString()))) { Console.WriteLine("Waiting for 10 seconds..."); Thread.Sleep(10*1000); Console.WriteLine("Unsubscribing..."); } Console.WriteLine("Waiting for 2 seconds..."); Thread.Sleep(2 * 1000); } } } }
System.Object
OpcLabs.BaseLib.Object2
OpcLabs.BaseLib.Info
OpcLabs.EasyOpc.AlarmsAndEvents.Reactive.AEReactive
OpcLabs.EasyOpc.AlarmsAndEvents.Reactive.AENotificationObservable