Connectivity Software User's Guide and Reference
PublishEdgeNodePayload(IEasySparkplugConsumer,SparkplugEdgeNodeDescriptor,SparkplugPayload) Method



OpcLabs.EasySparkplug Assembly > OpcLabs.EasySparkplug Namespace > IEasySparkplugConsumerExtension Class > PublishEdgeNodePayload Method : PublishEdgeNodePayload(IEasySparkplugConsumer,SparkplugEdgeNodeDescriptor,SparkplugPayload) Method
The consumer object that will perform the operation.

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

The Sparkplug edge node descriptor.

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

The Sparkplug payload.

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

Publishes a payload for an edge node, specifying the edge node descriptor and the payload object.
Syntax
'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Sub PublishEdgeNodePayload( _
   ByVal consumer As IEasySparkplugConsumer, _
   ByVal edgeNodeDescriptor As SparkplugEdgeNodeDescriptor, _
   ByVal payload As SparkplugPayload _
) 
'Usage
 
Dim consumer As IEasySparkplugConsumer
Dim edgeNodeDescriptor As SparkplugEdgeNodeDescriptor
Dim payload As SparkplugPayload
 
IEasySparkplugConsumerExtension.PublishEdgeNodePayload(consumer, edgeNodeDescriptor, payload)

Parameters

consumer
The consumer object that will perform the operation.

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

edgeNodeDescriptor
The Sparkplug edge node descriptor.

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

payload
The Sparkplug payload.

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

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 Sparkplug operation has failed. This operation exception in uniformly used to allow common handling of various kinds of errors. The System.Exception.InnerException always contains information about the actual error cause.

This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.

Remarks

In Sparkplug terms, this method effectively sends the NCMD message to the edge node.

If there is an error publishing the payload, this method throws OpcLabs.EasySparkplug.OperationModel.SparkplugException.

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.

 

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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