UAEventFilter Class

Defines the conditions under which an event notification should be reported.

Object Model

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ComDefaultInterfaceAttribute(OpcLabs.EasyOpc.UA.ComTypes._UAEventFilter)>
<ComVisibleAttribute(True)>
<GuidAttribute("BEF1C056-D153-4049-B3D5-2FD57E3049EC")>
<TypeConverterAttribute(OpcLabs.EasyOpc.UA.Implementation.UAEventFilterConverter)>
<CLSCompliantAttribute(True)>
<ValueControlAttribute("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.84.192.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", 
   DefaultReadWrite=False, 
   Export=True, 
   PageId=10001)>
<SerializableAttribute()>
Public NotInheritable Class UAEventFilter 
   Inherits OpcLabs.BaseLib.Parameters
   Implements LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, OpcLabs.BaseLib.ComTypes._Parameters, OpcLabs.EasyOpc.UA.ComTypes._UAEventFilter, System.ComponentModel.INotifyPropertyChanged, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable

'Usage
 
Dim instance As UAEventFilter

[ComDefaultInterface(OpcLabs.EasyOpc.UA.ComTypes._UAEventFilter)]
[ComVisible(true)]
[Guid("BEF1C056-D153-4049-B3D5-2FD57E3049EC")]
[TypeConverter(OpcLabs.EasyOpc.UA.Implementation.UAEventFilterConverter)]
[CLSCompliant(true)]
[ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.84.192.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", 
   DefaultReadWrite=false, 
   Export=true, 
   PageId=10001)]
[Serializable()]
public sealed class UAEventFilter : OpcLabs.BaseLib.Parameters, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, OpcLabs.BaseLib.ComTypes._Parameters, OpcLabs.EasyOpc.UA.ComTypes._UAEventFilter, System.ComponentModel.INotifyPropertyChanged, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable

[ComDefaultInterface(OpcLabs.EasyOpc.UA.ComTypes._UAEventFilter)]
[ComVisible(true)]
[Guid("BEF1C056-D153-4049-B3D5-2FD57E3049EC")]
[TypeConverter(OpcLabs.EasyOpc.UA.Implementation.UAEventFilterConverter)]
[CLSCompliant(true)]
[ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.84.192.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", 
   DefaultReadWrite=false, 
   Export=true, 
   PageId=10001)]
[Serializable()]
public ref class UAEventFilter sealed : public OpcLabs.BaseLib.Parameters, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, OpcLabs.BaseLib.ComTypes._Parameters, OpcLabs.EasyOpc.UA.ComTypes._UAEventFilter, System.ComponentModel.INotifyPropertyChanged, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable

Remarks

EventFilter:
"The EventFilter provides for the filtering and content selection of Event Subscriptions. If an Event Notification conforms to the filter defined by the where parameter of the EventFilter, then the Notification is sent to the Client. Each Event Notification shall include the fields defined by the selectClauses parameter of the EventFilter."

In order to obtain or modify these parameters, access the UAMonitoringParameters.EventFilter property of OpcLabs.EasyOpc.UA.OperationModel.UAMonitoredItemArguments.MonitoringParameters.

There are implicit conversions to this type from:

Inheritance Hierarchy

System.Object
   OpcLabs.BaseLib.Object2
      OpcLabs.BaseLib.Info
         OpcLabs.BaseLib.Parameters
            OpcLabs.EasyOpc.UA.UAEventFilter

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

UAEventFilter Members
OpcLabs.EasyOpc.UA Namespace

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