Protect cell depending on other cell's value - excel

I have an Excel spreadsheet where I want to protect cells in column I if the respective cell of column H <> "yes".
I found a code but it will protect all the cells of column I.
Option explicit
Sub unprotected
Me.unprotect password:= "abc"
End sub
Sub protect
Me.protect userinterfaceonly:= true ,password:= "abc"
End sub
Private Sub Worksheet_change(ByVal Target As Range)
Dim Crow as Long
Call Unprotected
xrow = Target.Row
If not (intersect(Target, range("H3:H1000")) is nothing then
Cells(xrow, "I").locked = (Ucase(trim(cells(xrow, "H").value))<>"yes")
End if
Call protect
End sub

Try this:
Option Explicit
Const PW As String = "abc" '<< use a constant for fixed/shared values
Private Sub Worksheet_change(ByVal Target As Range)
Dim rng As Range, c As Range
'find changed cells in range of interest
Set rng = Application.Intersect(Target, Me.Range("H3:H1000"))
If Not rng Is Nothing Then
UnprotectMe
'process each cell
For Each c In rng.Cells
Me.Cells.Cells(c.Row, "I").Locked = _
(UCase(Trim(Me.Cells(c.Row, "H").Value)) <> "YES")
Next c
ProtectMe
End If
End Sub
Sub UnprotectMe()
Me.Unprotect Password:=PW
End Sub
Sub ProtectMe()
Me.protect userinterfaceonly:=True, Password:=PW
End Sub

Related

Copy Cell to another column on change

I need to copy the contents of a cell in a particular column to another corresponding column on change so the old value is moved. Only wants to work for a particular column.
Private sub Worksheet_Change(ByVal Target As Range)
if Target.Range("L:L") then
'set I cell value = to original L cell value
ActiveCell.Offset(0,-3).Value = ActiveCell.Value
End If
End Sub
This code should do what you want. Please take note of the comments which explain some limitations I have imposed on the action of this procedure. The rule to follow is to not give it more power than it needs to do the job you want it to do.
Private Sub Worksheet_Change(ByVal Target As Range)
' 027
Dim Rng As Range
' don't react if the changed cell is in row 1 or
' if it is more than 1 row below the end of column L
Set Rng = Range(Cells(2, "L"), Cells(Rows.Count, "L").End(xlUp).Offset(1))
If Not Application.Intersect(Target, Rng) Is Nothing Then
With Target
' skip if more than 1 cell was changed
' meaning, exclude paste actions
If .Cells.CountLarge = 1 Then
.Offset(0, -3).Value = .Value
End If
End With
End If
End Sub
This will save the previous value in column I:
Private Sub Worksheet_Change(ByVal Target As Range)
Dim v As Variant
If Target.Count > 1 Then Exit Sub
If Intersect(Range("L:L"), Target) Is Nothing Then Exit Sub
With Application
v = Target.Value
.EnableEvents = False
.Undo
Target.Offset(0, -3).Value = Target.Value
Target.Value = v
.EnableEvents = True
End With
End Sub
EDIT#1:
To update L without triggering the event, use something like:
Sub ScriptThatUpdatesColumn_L()
Application.EnableEvents = False
Range("L5").Value = "just me"
Application.EnableEvents = True
End Sub

How Can You Lock Rows of Cells in Excel Based on Cell Value?

So I know that one can format cells to be locked and then protect a worksheet to prevent that data being overwritten. But I'm looking to be able to dynamically lock cells within a sheet. From doing some Googling I've tried adapting the below block of code for my needs. The intent is that if column A has a value the rest of the row will be locked so no one can overwrite the rest of the row.
Private Sub Worksheet_Change(ByVal Target As Range)
If Intersect(ActiveSheet.Cells(18, 1), Target) Is Not Nothing Then
If ActiveSheet.Cells(18, 1).Text = "X" Then
ActiveSheet.Range(Cells(18, 2), Cells(18, 20)).Locked = True
Else
ActiveSheet.Range(Cells(18, 2), Cells(18, 20)).Locked = False
End If
End If
End Sub
Any help would be much appreciated, as well as tips for succinctly applying this to every row in the sheet.
UPDATE:
Per BigBen's answer I've revised to the following:
Private Sub Workbook_Open()
Sheets(“Sheet8”).Protect Password:="Secret", UserInterFaceOnly:=True
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
Dim rng As Range
Set rng = Intersect(Me.Columns(1), Target)
If rng Is Nothing Then Exit Sub
Dim cell As Range
For Each cell In rng
cell.EntireRow.Locked = (cell.Value = "X")
Next
End Sub
But that still doesn't seem to be working...
You need to change the Intersect to test if Target intersects column A, and not a particular cell:
Note also the Not syntax: If Not Intersect... Is Nothing, instead of If Intersect... Is Not Nothing.
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Me.Columns(1), Target) Is Nothing Then
Dim rng as Range
For Each rng in Intersect(Me.Columns(1), Target)
If rng.Value = "X" Then
rng.EntireRow.Locked = True
Else
rng.EntireRow.Locked = False
End If
Next
End If
End Sub
Or perhaps a bit more succinctly:
Private Sub Worksheet_Change(ByVal Target As Range)
Dim rng As Range
Set rng = Intersect(Me.Columns(1), Target)
If rng Is Nothing Then Exit Sub
Dim cell As Range
For Each cell In rng
cell.EntireRow.Locked = (cell.Value = "X")
Next
End Sub

Conditional hiding worksheet from multiple selections

I need a sheet in Excel to activate if any cells in a column are selected as "Yes", but my VBA code won't stick - simple enough to do for one cell, but the whole column is throwing me. The cells are a drop down list with solely the options "Yes" or "No"
Currently trying:
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address = "$H$11:$H$23" Then
If ActiveWorkbook.Worksheets("Sheet1").Range("H11:H23").Value = "Yes" Then
Sheets("Sheet2").Visible = True
Else
Sheets("Sheet2").Visible = False
End If
End If
End Sub
Any tips? Thanks
An easier solution without looping would be to count the Yes using WorksheetFunction.CountIf method.
Use the following to show Sheet2 if at least one cell has the Yes.
Option Explicit
Private Sub Worksheet_Change(ByVal Target As Range)
Dim TestRange As Range
Set TestRange = Me.Range("H11:H23")
If Not Application.Intersect(Target, TestRange) Is Nothing Then 'if target is in test range
If Application.WorksheetFunction.CountIf(TestRange, "Yes") > 0 Then
Worksheets("Sheet2").Visible = True
Else
Worksheets("Sheet2").Visible = False
End If
End If
End Sub
If all cells in the test range need to be Yes then change it to
If Application.WorksheetFunction.CountIf(TestRange, "Yes") = TestRange.Cells.Count Then
i think you could try:
Option Explicit
Private Sub Worksheet_Change(ByVal Target As Range)
Dim cell As Range, rng As Range
Dim Inrng As Boolean
If Not Intersect(Target, Me.Range("H11:H23")) Is Nothing Then
'Set a boolean variable to false
Inrng = False
'Set a range to loop
Set rng = Me.Range("H11:H23")
'Start looping the range
For Each cell In rng
'Convert the value of a cell to Upper case to avoid case sensitive issues
If UCase(cell.Value) = "YES" Then
'Turn the variable to true if value appears in the range
Inrng = True
'Exit the loop to avoid time consuming
Exit For
End If
Next cell
If Inrng = True Then
Worksheets("Sheet2").Visible = True
Else
Worksheets("Sheet2").Visible = False
End If
End If
End Sub

How do I add multiple targets to this code?

The code below will add contents of A to B and then clear A across the entire column. How do I duplicate this function to have multiple columns with their own targets inside the same sub? Do I have to write a private sub for each?
Private Sub Worksheet_Change(ByVal Target As Range)
Dim T As Range, r As Range
Set T = Intersect(Target, Range("A:A"))
If T Is Nothing Then Exit Sub
Application.EnableEvents = False
For Each r In T
With r
.Offset(0, 1).Value = .Offset(0, 1).Value + .Value
.ClearContents
End With
Next r
Application.EnableEvents = True
End Sub
Thank you!
Single column:
Try using Select Case with Target.Column to determine what to do based on column that had event. Adding a GetLastRow function, following helpful comment from #AJD, to ensure only looping populated column range.
Option Explicit
Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False
If Target.Columns.Count <> 1 Then Exit Sub
Select Case Target.Column
Case 1
'col A do something
ClearRange Target
Case 2
'col B do something
ClearRange Target
'Etc
End Select
Application.EnableEvents = True
End Sub
Public Sub ClearRange(ByVal T As Range) '<== This works on the basis Target is a single column
Dim r As Range, loopRange As Range, ws As Worksheet
Set ws = ThisWorkbook.Worksheets(T.Parent.Name)
Set loopRange = ws.Range(ws.Cells(1, T.Column), ws.Cells(GetLastRow(ws, T.Column), T.Column))
If loopRange Is Nothing Then Exit Sub
'Debug.Print loopRange.Address
For Each r In loopRange
With r
.Offset(0, 1).Value = .Offset(0, 1).Value + .Value
.ClearContents
End With
Next r
End Sub
Public Function GetLastRow(ByVal ws As Worksheet, Optional ByVal columnNumber As Long = 1) As Long
With ws
GetLastRow = .Cells(.Rows.Count, columnNumber).End(xlUp).Row
End With
End Function
tl;dr;
Multi-column:
You can re-write yours as follows. Though I am not sure what happens with multiple columns. Say, columns A:B, simplest case, were Target, does A get looped transfer and added to B, A gets cleared, B gets looped, added to C and B gets cleared? I wasn't really clear so haven't written anything for the inner part. I simply addressed the title of how to add more targets. Happy to update upon clarification.
Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False
If Not Intersect(Target, Range("A:A")) Is Nothing Then
End If
If Not Intersect(Target, Range("B:B")) Is Nothing Then
End If
Application.EnableEvents = True
End Sub

How can I spread a sub to a multiple range of cells?

The purpose of this code is to update the date in a cell as a certain cell's contents are changed.
Since this was originally coded inside a sub, I now need to expand this code to a range of multiple cells. Ie. At this moment, the code only takes cell D4 and updates cell L4, I want to be able to drag this function down so it can reach a multiple range of cells; take D5 and update L5 etc.
Here's my code as the sub:
Dim oldValue
Public Sub Worksheet_SelectionChange(ByVal Target As Range)
oldValue = Target.Worksheet.Range("D4").Value
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Target.Worksheet.Range("D4")) Is Nothing Then
If oldValue <> Target.Worksheet.Range("D4").Value Then
Target.Worksheet.Range("L4").Value = Date
End If
End If
End Sub
The problem here, is that I don't know how to properly expand my code to match a further selection of cells. Here's my attempt:
Dim oldValue
Public Sub Worksheet_SelectionChange(ByVal Target As Range)
oldValue = Target.Worksheet.Range("D4", "D21").Value
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Target.Worksheet.Range("D4", "D21")) Is Nothing Then
If oldValue <> Target.Worksheet.Range("D4", "D21").Value Then
Target.Worksheet.Range("L4", "L21").Value = Date
End If
End If
End Sub
EDIT: The sub I have written only applies to one cell, I am trying to work out a way to have it spread out to a certain selection of cells. Ie. D4:D12 which updates the date in L4:L12 accordingly.
If anyone could help me, that would be greatly appreciated.
Try the following code:
Dim oldValue()
Public Sub Worksheet_SelectionChange(ByVal Target As Range)
oldValue = Me.Range("D4:D12").Value
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("D4:D12")) Is Nothing Then
Application.EnableEvents = False
Dim c As Range
For Each c In Intersect(Target, Me.Range("D4:D12"))
'Check value against what is stored in "oldValue" (row 4 is in position 1, row 5 in position 2, etc)
If oldValue(c.Row - 3, 1) <> c.Value Then
'Update value in column L (8 columns to the right of column D)
c.Offset(0, 8).Value = Date 'or possibly "= Now()" if you need the time of day that the cell was updated
End If
Next
Application.EnableEvents = True
End If
End Sub
Set up a hidden sheet to hold the old values.
Sub SetupMirrorValues()
With Worksheets.Add
.Name = "MirrorValues"
.visibilty = xlSheetVeryHidden
.Range("D4:D10,D12,D14:D20") = Worksheets("Sheet1").Range("D4:D10,D12,D14:D20")
End With
End Sub
In the Worksheet_Change event handler, you would check the Target cells that intersect with the range you want to monitor. If there are differences then you update the timestamp and the cell on the hidden sheet that corresponds to the changed cell.
Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False
Application.ScreenUpdating = False
Dim cell As Range, DRange As Range
Set DRange = Range("D4:D10,D12,D14:D20")
If Not Intersect(DRange, Target) Is Nothing Then
For Each cell In Intersect(DRange, Target)
If cell.Value <> Worksheets("MirrorValues").Range(cell.Address) Then
cell.EntireRow.Cells(1, "L").Value = Now
Worksheets("MirrorValues").Range(cell.Address) = cell.Value
End If
Next
End If
Application.EnableEvents = True
Application.ScreenUpdating = False
End Sub

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