Using VBA / Macro to highlight changes in excel
- by Zaj
I have a spread sheet that I send out to various locations to have information on it updated and then sent back to me. However, I had to put validation and lock the cells to force users to input accurate information. Then I can to use VBA to disable the work around of cut copy and paste functions. And additionally I inserted a VBA function to force users to open the excel file in Macros. Now I'm trying to track the changes so that I know what was updated when I recieve the sheet back. However everytime i do this I get an error when someone savesthe document and randomly it will lock me out of the document completely.
I have my code pasted below, can some one help me create code in the VBA forum to highlight changes instead of through excel's share/track changes option?
ThisWorkbook (Code):
Option Explicit
Const WelcomePage = "Macros"
Private Sub Workbook_BeforeClose(Cancel As Boolean)
Call ToggleCutCopyAndPaste(True)
'Turn off events to prevent unwanted loops
Application.EnableEvents = False
'Evaluate if workbook is saved and emulate default propmts
With ThisWorkbook
If Not .Saved Then
Select Case MsgBox("Do you want to save the changes you made to '" & .Name & "'?", _
vbYesNoCancel + vbExclamation)
Case Is = vbYes
'Call customized save routine
Call CustomSave
Case Is = vbNo
'Do not save
Case Is = vbCancel
'Set up procedure to cancel close
Cancel = True
End Select
End If
'If Cancel was clicked, turn events back on and cancel close,
'otherwise close the workbook without saving further changes
If Not Cancel = True Then
.Saved = True
Application.EnableEvents = True
.Close savechanges:=False
Else
Application.EnableEvents = True
End If
End With
End Sub
Private Sub Workbook_BeforeSave(ByVal SaveAsUI As Boolean, Cancel As Boolean)
'Turn off events to prevent unwanted loops
Application.EnableEvents = False
'Call customized save routine and set workbook's saved property to true
'(To cancel regular saving)
Call CustomSave(SaveAsUI)
Cancel = True
'Turn events back on an set saved property to true
Application.EnableEvents = True
ThisWorkbook.Saved = True
End Sub
Private Sub Workbook_Open()
Call ToggleCutCopyAndPaste(False)
'Unhide all worksheets
Application.ScreenUpdating = False
Call ShowAllSheets
Application.ScreenUpdating = True
End Sub
Private Sub CustomSave(Optional SaveAs As Boolean)
Dim ws As Worksheet, aWs As Worksheet, newFname As String
'Turn off screen flashing
Application.ScreenUpdating = False
'Record active worksheet
Set aWs = ActiveSheet
'Hide all sheets
Call HideAllSheets
'Save workbook directly or prompt for saveas filename
If SaveAs = True Then
newFname = Application.GetSaveAsFilename( _
fileFilter:="Excel Files (*.xls), *.xls")
If Not newFname = "False" Then ThisWorkbook.SaveAs newFname
Else
ThisWorkbook.Save
End If
'Restore file to where user was
Call ShowAllSheets
aWs.Activate
'Restore screen updates
Application.ScreenUpdating = True
End Sub
Private Sub HideAllSheets()
'Hide all worksheets except the macro welcome page
Dim ws As Worksheet
Worksheets(WelcomePage).Visible = xlSheetVisible
For Each ws In ThisWorkbook.Worksheets
If Not ws.Name = WelcomePage Then ws.Visible = xlSheetVeryHidden
Next ws
Worksheets(WelcomePage).Activate
End Sub
Private Sub ShowAllSheets()
'Show all worksheets except the macro welcome page
Dim ws As Worksheet
For Each ws In ThisWorkbook.Worksheets
If Not ws.Name = WelcomePage Then ws.Visible = xlSheetVisible
Next ws
Worksheets(WelcomePage).Visible = xlSheetVeryHidden
End Sub
Private Sub Workbook_Activate()
Call ToggleCutCopyAndPaste(False)
End Sub
Private Sub Workbook_Deactivate()
Call ToggleCutCopyAndPaste(True)
End Sub
This is in my ModuleCode:
Option Explicit
Sub ToggleCutCopyAndPaste(Allow As Boolean)
'Activate/deactivate cut, copy, paste and pastespecial menu items
Call EnableMenuItem(21, Allow) ' cut
Call EnableMenuItem(19, Allow) ' copy
Call EnableMenuItem(22, Allow) ' paste
Call EnableMenuItem(755, Allow) ' pastespecial
'Activate/deactivate drag and drop ability
Application.CellDragAndDrop = Allow
'Activate/deactivate cut, copy, paste and pastespecial shortcut keys
With Application
Select Case Allow
Case Is = False
.OnKey "^c", "CutCopyPasteDisabled"
.OnKey "^v", "CutCopyPasteDisabled"
.OnKey "^x", "CutCopyPasteDisabled"
.OnKey "+{DEL}", "CutCopyPasteDisabled"
.OnKey "^{INSERT}", "CutCopyPasteDisabled"
Case Is = True
.OnKey "^c"
.OnKey "^v"
.OnKey "^x"
.OnKey "+{DEL}"
.OnKey "^{INSERT}"
End Select
End With
End Sub
Sub EnableMenuItem(ctlId As Integer, Enabled As Boolean)
'Activate/Deactivate specific menu item
Dim cBar As CommandBar
Dim cBarCtrl As CommandBarControl
For Each cBar In Application.CommandBars
If cBar.Name <> "Clipboard" Then
Set cBarCtrl = cBar.FindControl(ID:=ctlId, recursive:=True)
If Not cBarCtrl Is Nothing Then cBarCtrl.Enabled = Enabled
End If
Next
End Sub
Sub CutCopyPasteDisabled()
'Inform user that the functions have been disabled
MsgBox " Cutting, copying and pasting have been disabled in this workbook. Please hard key in data. "
End Sub
