Solved

Unlock Range in Excel using VBA

Posted on 2011-03-07
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954 Views
Last Modified: 2012-05-11
I've been tasked with setting up a spreadsheet which will be distributed to HR Managers across our business which will produce an output that will be used at board level to develop the ongoing HR strategy. To this end, I need to create a spreadsheet which allows simple data entry as I make the assumption that the HR community is non-technical meaning that I need to protect as much of the spreadsheet as possible. My main area of expertise is in Access (using VBA), so I'm having a bit of difficulty with a few things in Excel. A key problem is how to protect a worksheet, but allow data entry into certain cells. In particular, I would like to have a range which can have data entered, but the range itself needs to be able to grow. For example, the range contains five columns (the number of columns is static) which will contain data like name, Job Title, Line Manager etc. The number of rows is dynamic and will grow depending on how many staff the relevant department contains. Obviously I can set up a spreadsheet using basic Excel worksheet protection and allowing the editing of ranges. However, this gives me no control over resizing the range which can be edited. I've tried the following code, but I always get a type mismatch on the .Protection line:

 
Public Sub sProtectSheets(blnProtected As Boolean)
Dim intSheet As Integer

If blnProtected Then
    intLastSheet = ActiveWorkbook.Worksheets.Count - 1
    For intSheet = intFirstSheet To intLastSheet
    If Sheets(intSheet).Name = "Talent Spotlight" Then
        Sheets(intSheet).Unprotect (mPassword)
        Sheets(intSheet).Protection.AllowEditRanges.Add Title:="TSDataEntry", _
        Range:=("A27:G27"), Password:=mPassword
        Sheets(intSheet).Protect
    End If
    Next
End If
    
End Sub

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I've also tried declaring a worksheet object instead of using the sheets collection, but this has the same error. I also realise that the code above will not grow the range, but I don't want to run before I can walk, so I'm starting with what should be the easiest problem to solve...
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Question by:Karl_mark
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9 Comments
 
LVL 85

Expert Comment

by:Rory Archibald
ID: 35057793
You need to specify the sheet for the allow range too:
        Sheets(intSheet).Protection.AllowEditRanges.Add Title:="TSDataEntry", _
        Sheets(intSheet).Range:=("A27:G27"), Password:=mPassword

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LVL 85

Expert Comment

by:Rory Archibald
ID: 35057806
Sorry - typo:
Sheets(intSheet).Protection.AllowEditRanges.Add Title:="TSDataEntry", _
        Range:=Sheets(intSheet).Range("A27:G27"), Password:=mPassword

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Assisted Solution

by:royhsiao
royhsiao earned 250 total points
ID: 35058144
To create a dynamic range you will need to use the following function: Address, Row, column and counta, Offest.

The best way to understand how to put them together is using the following example.
1) put the following function in cell(1,1)
=ADDRESS(ROW($A$2),COLUMN($A$2),,,"Sheet1")&":"&ADDRESS(ROW(OFFSET($A$2,COUNTA(A3:A180),0)),COLUMN($B$2))

2) put the following value in range ("A2:B6")
Loan      Amt
1      $100
2      $200
3      $300
4      $400

3) if you did it correctly, you should see the following in cells (1,1). You could use VBA to reference that cell to resize the range.
Sheet1!$A$2:$B$6

Best,

Roy
0
 

Author Comment

by:Karl_mark
ID: 35058423
Thanks rorya. Referencing the sheets in the range makes sense. Only problem is I now get an "Application-defined or Object-Defined error" when it reaches that line in the code. Is this because it is trying to create a range which already exists once the code has executed the first time?
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LVL 85

Expert Comment

by:Rory Archibald
ID: 35058447
I suspect so. You might try deleting that range, or adding it using a different name as a test, or simply delete it before you add it again.
0
 

Author Comment

by:Karl_mark
ID: 35058474
Very useful formula royhsiao. Presumably I just increase the COUNTA range should I need to go past row 180... Clever and fairly simple!
0
 

Author Comment

by:Karl_mark
ID: 35058806
rorya:
OK, I altered the code so that it checks to see if the named range already exists in the workbook; if it does, then it is deleted before recreating the range (I haven't added in the resizing part yet, want to get this bit working first). I still get the application/object defined error message though when it reaches the Sheets(intSheet).Protection... line. I can't see anything which might throw this error as the code looks fine to me. Any ideas? I've pasted all the code in question below (it's in the ThisWorkbook Object):

Public Sub Workbook_Open()
    sProtectSheets (True)
End Sub

Public Sub sProtectSheets(blnProtected As Boolean)
Dim intSheet As Integer

If blnProtected Then
    intLastSheet = ActiveWorkbook.Worksheets.Count - 1
    For intSheet = intFirstSheet To intLastSheet
    If Sheets(intSheet).Name = "Talent Spotlight" Then
        Sheets(intSheet).Unprotect (mPassword)
        If NamedRangeExists("TSDataEntry") Then
            ActiveWorkbook.Names("TSDataEntry").Delete
        End If
            Sheets(intSheet).Protection.AllowEditRanges.Add Title:="TSDataEntry", _
            Range:=Sheets(intSheet).Range("A27:G27"), Password:=mPassword
            Sheets(intSheet).Protect
    End If
    Next
End If
    
End Sub

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LVL 85

Accepted Solution

by:
Rory Archibald earned 250 total points
ID: 35058909
I meant that you need to delete it from the AllowEditRanges collection actually:
Sheets(intSheet).Protection.AllowEditRanges("TSDataEntry").Delete

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(untested)
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Author Closing Comment

by:Karl_mark
ID: 35070711
Thanks guys. Works perfectly now!
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