OPC Studio User's Guide and Reference
AsPublishedEventsElement Method (UAPublishedDataSetSourceElementExtension)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.Configuration.Extensions Namespace > UAPublishedDataSetSourceElementExtension Class : AsPublishedEventsElement Method

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

The current OPC UA published dataset source element expressed as "published events" element.
Syntax
'Declaration
 
<ExtensionAttribute()>
<CanBeNullAttribute()>
Public Shared Function AsPublishedEventsElement( _
   ByVal publishedDataSetSourceElement As UAPublishedDataSetSourceElement _
) As UAPublishedEventsElement
'Usage
 
Dim publishedDataSetSourceElement As UAPublishedDataSetSourceElement
Dim value As UAPublishedEventsElement
 
value = UAPublishedDataSetSourceElementExtension.AsPublishedEventsElement(publishedDataSetSourceElement)
[Extension()]
[CanBeNull()]
public static UAPublishedEventsElement AsPublishedEventsElement( 
   UAPublishedDataSetSourceElement publishedDataSetSourceElement
)
[Extension()]
[CanBeNull()]
public:
static UAPublishedEventsElement^ AsPublishedEventsElement( 
   UAPublishedDataSetSourceElement^ publishedDataSetSourceElement
) 

Parameters

publishedDataSetSourceElement

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

Return Value

This method can return null (Nothing in Visual Basic).

Remarks

Returns null if the current OPC UA published dataset source element is not a "published events" element.

This method has been introduced primarily for languages like PHP that do not allow down-casting.

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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