Vb.net Sub UpdateMergeFields change from Word.Interop to Aspose.Word

Appreciate your assistance with changing the following subroutine so it uses Aspose.Word instead of Microsoft.Office.Interop.Word

Public Shared Sub UpdateMergeFields(ByRef path As String)
Try

if string.Empty.Equals(Configuration.ConfigurationSettings.AppSettings("UpdateMergeFields") & "")
exit Sub
End If
Dim app As ApplicationClass
Dim doc As DocumentClass
Try
If Not System.IO.File.Exists(path) Then
Exit Sub
End If
doc = app.Documents.Open(path)
doc.ComputeStatistics(WdStatistic.wdStatisticPages)
If doc.Sections.Count > 0 Then
doc.Sections(1).Headers(WdHeaderFooterIndex.wdHeaderFooterEvenPages).Range.Fields.Update()
doc.Sections(1).Headers(WdHeaderFooterIndex.wdHeaderFooterFirstPage).Range.Fields.Update()
doc.Sections(1).Headers(WdHeaderFooterIndex.wdHeaderFooterPrimary).Range.Fields.Update()
End If
doc.Range.Fields.Update()
doc.Save()
Catch
' ignore error
Finally
If Not doc Is Nothing Then
doc.Close()
End If
If Not app Is Nothing Then
app.Quit()
End If
End Try
Catch ex As Exception
' ignore error
End Try

End Sub

Hi
Thanks for your interest in Aspose.Words. As I can see your code just update fields in the document. Currently Aspose.Words can update DOCPROPERTY and DOCVARIABLE fields only. See the following link for more information.
https://reference.aspose.com/words/net/aspose.words/document/updatefields/
Also see FAQ.
Best regards.