trying to run through all files and update drawings

'Journal to Cycle All Part Files in a specified folder (with option to include subfolders)
'based on 'cyclePartFiles' code example from GTAC
'
'This journal will prompt for a folder (selection dialog)
'then open each file and perform some action on the file then close the file

Option Strict Off
Imports System
Imports System.IO
Imports System.Collections
Imports System.Windows.Forms

Imports NXOpen
Imports NXOpenUI
Imports NXOpen.UF

Module Cycle_Files_and_Folders_b
Dim theSession As Session = Session.GetSession
Dim LW As ListingWindow = theSession.ListingWindow

Dim workPart As Part = theSession.Parts.Work
Dim displayPart As Part = theSession.Parts.Display
Dim initialPart As Part = theSession.Parts.Display

Dim nTotalPartFiles As Integer = 0

Sub Main()

Dim strOutputFolder As String
LW.Open()
Try

Dim FolderBrowserDialog1 As New FolderBrowserDialog
' Change the .SelectedPath property to the default location
With FolderBrowserDialog1
' Desktop is the root folder in the dialog.
.RootFolder = Environment.SpecialFolder.Desktop
' Change the following line to default to a given path
.SelectedPath = "C:\"
' Prompt the user with a custom message.
.Description = "Select the directory to scan"
If .ShowDialog = DialogResult.OK Then
' Display the selected folder if the user clicked on the OK button.
'msgbox(.SelectedPath)
strOutputFolder = .SelectedPath
Else
'user pressed "cancel", exit the journal
Exit Sub
End If
End With

LW.WriteLine("Cycle All Parts in a Folder Tree")
LW.WriteLine("Start Time: " & CType(TimeOfDay(), String))
LW.WriteLine("")

processParts(strOutputFolder, False)

LW.WriteLine("")
LW.WriteLine("Total Part Files Scanned: " & nTotalPartFiles)
LW.WriteLine("Stop Time: " & CType(TimeOfDay(), String))

Catch ex As NXException
LW.WriteLine("Cycle Files and Folders Error: " & ex.Message)
Exit Sub
End Try
End Sub

'***************************************************************************
'Process All Parts in a Directory

Sub processParts(ByVal directoryPath As String, ByVal includeSubDirs As Boolean)

Try
Dim nPartFiles As Integer = 0
Dim part1 As Part
Dim files() As String

If includeSubDirs Then
files = Directory.GetFiles(directoryPath, "*.prt", SearchOption.AllDirectories)
Else
files = Directory.GetFiles(directoryPath, "*.prt", SearchOption.TopDirectoryOnly)
End If
For Each fileName As String In files
nPartFiles += 1
nTotalPartFiles += 1
LW.WriteLine(" " & nPartFiles & " " & Path.GetFileName(fileName))

If (IsNothing(initialPart)) OrElse (initialPart.FullPath <> fileName) Then
part1 = theSession.Parts.OpenDisplay(fileName, Nothing)
Else
'LW.WriteLine("initial part equals display part: " & initialPart.Equals(displayPart).ToString)
part1 = displayPart
End If

displayPart = theSession.Parts.Display
workPart = theSession.Parts.Display

'do something
'write your own subroutines and/or functions to process the part and call them from here

For Each tempSheet As Drawings.DrawingSheet In workPart.DrawingSheets
For Each tempView As Drawings.DraftingView In tempSheet.GetDraftingViews
If tempView.IsOutOfDate Then
tempView.Update()
End If
Next
Next

'close file unless this file was initially open
If (IsNothing(initialPart)) OrElse (initialPart.FullPath <> fileName) Then
part1.Save(BasePart.SaveComponents.True, BasePart.CloseAfterSave.True)
'part1.Close(BasePart.CloseWholeTree.False, BasePart.CloseModified.UseResponses, Nothing)
part1 = Nothing
workPart = Nothing
displayPart = Nothing
End If

If Not IsNothing(initialPart) Then
Dim partLoadStatus1 As PartLoadStatus
Dim status1 As PartCollection.SdpsStatus
status1 = theSession.Parts.SetDisplay(initialPart, False, False, partLoadStatus1)

displayPart = theSession.Parts.Display
partLoadStatus1.Dispose()
theSession.Parts.SetWork(displayPart)
workPart = theSession.Parts.Work
End If

Next fileName
Catch ex As Exception
LW.WriteLine("Part Scan Error: " & ex.Message)
End Try

End Sub

'***************************************************************************
Function CountBodies() As Integer

Dim total As Integer
total = workPart.Bodies.ToArray.Length
Return total

End Function

'***********************************************************************

Public Function GetUnloadOption(ByVal dummy As String) As Integer

'Unloads the image when the NX session terminates
GetUnloadOption = NXOpen.Session.LibraryUnloadOption.AtTermination

End Function