'Declaration
 
<CanBeNullAttribute()>
Protected Overrides NotOverridable Function GetMetaValue( _
   ByVal metaName As String, _
   ByVal targetObject As Object, _
   ByVal mappingContext As AbstractMappingContext, _
   ByVal mapper As AbstractMapper _
) As Object

'Usage
 
Dim instance As UAMappingProvider
Dim metaName As String
Dim targetObject As Object
Dim mappingContext As AbstractMappingContext
Dim mapper As AbstractMapper
Dim value As Object
 
value = instance.GetMetaValue(metaName, targetObject, mappingContext, mapper)

[CanBeNull()]
protected override object GetMetaValue( 
   string metaName,
   object targetObject,
   AbstractMappingContext mappingContext,
   AbstractMapper mapper
)

[CanBeNull()]
protected:
Object^ GetMetaValue( 
   String^ metaName,
   Object^ targetObject,
   AbstractMappingContext^ mappingContext,
   AbstractMapper^ mapper
) override 

Parameters

metaName

The name of the meta-member.The name of the meta-member.

targetObject

The target object.The target object.

mappingContext

The mapping context.The mapping context.

mapper

The current mapper.The current mapper.

Return Value

OpcLabs.BaseLib.LiveMapping.AbstractMappingProvider supports following meta-members:

• Mappings: IEnumerable, an enumeration of mappings defined directly on the target object.
• Parent: System.Object, a reference to the parent target object; null if none.

OpcLabs.BaseLib.LiveMapping.AbstractMappingProvider supports following meta-members:

• Mappings: IEnumerable, an enumeration of mappings defined directly on the target object.
• Parent: System.Object, a reference to the parent target object; null if none.

UAMappingProvider supports following meta-members:

• EndpointDescriptor: OpcLabs.EasyOpc.UA.UAEndpointDescriptor, an OPC-UA server involved in the operation.
• MonitoringParameters: OpcLabs.EasyOpc.UA.UAMonitoringParameters, an object containing monitoring parameters, such as the sampling interval.
• NodeDescriptor: OpcLabs.EasyOpc.UA.UANodeDescriptor, the descriptor of the OPC-UA node involved in the operation.
• ReadParameters: OpcLabs.EasyOpc.UA.UAReadParameters, the read parameters (such as the maximum age of the value).
• SubscriptionParameters: OpcLabs.EasyOpc.UA.UASubscriptionParameters, an object containing subscription parameters, such as the publishing interval.

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