'Declaration
 
<ExtensionAttribute()>
<JetBrains.Annotations.NotNullAttribute()>
Public Overloads Shared Function Constant( _
   ByVal metric As SparkplugMetric, _
   ByVal valueType As Type, _
   ByVal data As SparkplugData _
) As SparkplugMetric

'Usage
 
Dim metric As SparkplugMetric
Dim valueType As Type
Dim data As SparkplugData
Dim value As SparkplugMetric
 
value = SparkplugMetricExtension.Constant(metric, valueType, data)

[Extension()]
[JetBrains.Annotations.NotNull()]
public static SparkplugMetric Constant( 
   SparkplugMetric metric,
   Type valueType,
   SparkplugData data
)

[Extension()]
[JetBrains.Annotations.NotNull()]
public:
static SparkplugMetric^ Constant( 
   SparkplugMetric^ metric,
   Type^ valueType,
   SparkplugData^ data
) 

Parameters

metric

The Sparkplug metric that will perform the operation.

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

valueType

The type of the Sparkplug metric, expressed as .NET System.Type.

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

data

The constant Sparkplug data that will be provided by the metric.

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

Return Value

The metric will not be writable.

The metric is made read-only, and its minimum sampling interval is set to System.Threading.Timeout.Infinite, effectively disabling the sampling.

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