'Declaration
<CanBeNullAttribute()> Function GetExtensionFieldValue( _ ByVal publishedDataSetName As String, _ ByVal dataSetFolderPath As Object, _ ByVal extensionFieldQualifiedName As Object _ ) As Object
'Usage
Dim instance As _UAReadOnlyPubSubConfiguration Dim publishedDataSetName As String Dim dataSetFolderPath As Object Dim extensionFieldQualifiedName As Object Dim value As Object value = instance.GetExtensionFieldValue(publishedDataSetName, dataSetFolderPath, extensionFieldQualifiedName)
[CanBeNull()] object GetExtensionFieldValue( string publishedDataSetName, object dataSetFolderPath, object extensionFieldQualifiedName )
[CanBeNull()] Object^ GetExtensionFieldValue( String^ publishedDataSetName, Object^ dataSetFolderPath, Object^ extensionFieldQualifiedName )
Parameters
- publishedDataSetName
- The name of the published dataset.
The value of this parameter can be
null
(Nothing
in Visual Basic). - dataSetFolderPath
- An optional path to the folder that contains the published dataset.
The value of this parameter can be
null
(Nothing
in Visual Basic).The individual elements of the parameter value cannot be
null
(Nothing
in Visual Basic). - extensionFieldQualifiedName
- The qualified name of the extension field.
Because the OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedName has an implicit conversion from System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the expanded text of the qualified name) in place of this parameter, and the corresponding OPC UA qualified name will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.AddressSpace.UAQualifiedName.UAQualifiedName Constructor(String) constructor instead.
The value of this parameter cannot be
null
(Nothing
in Visual Basic).
Return Value
This method can return null
(Nothing
in Visual Basic).