Array formula into range of cells - vba

I'm trying to put an array formula into a range of cells ("B2:B10") The formula should return multiple results dependent on the value in cell A2. When I do it the normal way (ctrl, shift, enter) it works ok, but when I try to do it with code it returns the same result in each cell which is the first instance found. Can anyone help me out to get the result I'm looking for?
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address = Range("$A$2").Address Then
With Range("B2:B10")
.FormulaArray = "=INDEX(Absence!$C$2:$C$151, SMALL(IF($A$2=Absence!$A$2:$A$151, ROW(Absence!$A$2:$A$151)-ROW(Absence!$A$2)+1), ROW(Absence!1:1)))"
.Value = .Value
End With
End If
End Sub

Is this any better:
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address = Range("$A$2").Address Then
Range("B2").FormulaArray = "=INDEX(Absence!$C$2:$C$151, SMALL(IF($A$2=Absence!$A$2:$A$151, ROW(Absence!$A$2:$A$151)-ROW(Absence!$A$2)+1), ROW(Absence!1:1)))"
Range("B2").Copy Range("B3:B10")
Range("B2:B10").Value = Range("B2:B10").Value
End If
End Sub

The problem is that you are array-entering the formula into all of the cells at once instead of array-entering into the first cell and filling down. Without filling down, the ROW(1:1) does not progess. You need to put all of the possible k values for the SMALL function in at once with ROW(1:150).
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address = Range("$A$2").Address Then
With Range("B2:B10")
.FormulaArray = "=INDEX(Absence!$C$2:$C$151, SMALL(IF($A$2=Absence!$A$2:$A$151, ROW(2:151)-ROW(2:2)+1), ROW(1:9)))"
.Value = .Value
End With
End If
End Sub
Btw, when we use ROW(Absence!$A$2:$A$151) to achieve a number between 2 and 151, the worksheet and column letter are not necessary. ROW(2:151) will do fine and cleans up the formula a little.

Related

Excel cell value change depending on other cell value

What I want to achieve is this:
Cell F1 can contain values "MT", "LT" or "MT+LT". If I change the value to "MT", cells C10:C15 should change to value 0. If I change value to LT, cells C3:C8 should change to 0. This looks like a simple task, but I can't find an example, how to do it.
I'm new to VBA so please be gentle :)
You can try this code (you have to paste it in desired sheet in VBE). It will be fired on every change in the sheet:
Option Explicit
Private Sub Worksheet_Change(ByVal Target As Range)
'if value changed in some other cell than F1, then finish Sub
If Target.Address <> "$F$1" Then Exit Sub
If Target.Value = "MT" Then
Range("C10:C15").Value = 0
ElseIf Target.Value = "LT" Then
Range("C3:C8").Value = 0
ElseIf Target.Value = "MT+LT" Then
'some action, you seem to forgot
End If
End Sub

If Cells A1:C1= "No", All cells in the risk of the row will be blocked from input

Anyone know how to block cells from input (also gray it out) if for example cells A1:C1 = "No" then the rest of the row up to a say F1 is grayed out and blocked from input? I was hoping to do this in VBA but if there are other easier ways, please let me know! Thank you!
Didi
Just to show a different approach:
Put this in the sheet-code-tab:
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
If Not (Intersect(Target, Me.Range("D1:F1")) Is Nothing) And Me.Evaluate("AND(LOWER(A1:C1)=""no"")") Then Me.Range("A1").Select
End Sub
And to grey them out, best will be conditional formatting:
Range: =$D$1:$F$1
Formula: =AND(LOWER($A$1:$C$1)="no")
Using the conditional formatting allows to change the cells as you like without the need to alter the VBA code (this also will be faster)
The VBA part itself, just sets the selected cell to A1 if A1:C1 is "No" and a range is selected which also includes any of the cells of D1:F1
The LOWER can be skipped if you want it to be case sensitive
The only con is: if A1:C1 is "no" you still can paste a range to a cell (not any of D1:F1 directly) which also include the locked cells.
The biggest pro is: this also works for shared workbooks (as there is no need to lock/unlock sheets)
EDIT
If the cells need to be protected then something like this will do:
Private Sub Worksheet_Change(ByVal Target As Range)
Dim a As Boolean
a = Me.Evaluate("AND(LOWER(A1:C1)=""no"")")
If a <> Me.Range("D1").Locked Then
Me.Unprotect
Me.Range("D1:F1").Locked = a
Me.Protect
End If
End Sub
as was mentioned in the comments, look to use a workbook change event with the following sub
Sub test()
If Worksheets("Sheet1").Range("A1").Value = "no" And Worksheets("Sheet1").Range("B1").Value = "no" And Worksheets("Sheet1").Range("C1").Value = "no" Then
Worksheets("Sheet1").Range("D1:F1").Interior.Color = RGB(220, 220, 220)
Worksheets("Sheet1").Range("D1:F1").Locked = True
Worksheets("Sheet1").Protect
End If
End Sub

How to clear cell when enter invalid data in Excel using VBA

I have an Excel sheet in which I am accepting value from the user when user enter a value a VBA will run which check the data is valid or not and if the data is not valid it will prompt a message saying invalid data. Here is my code:
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address = "$D$12" Or Target.Address = "$D$13" Or Target.Address = "$D$14" Or Target.Address = "$D$15" Then
Call Room
End If
End Sub
Room method is
Sub Room()
Dim lastRow As Long
If IsNumeric(Range("i17")) Then
If [I17] < 0 Then
MsgBox "msg "
End If
End If
End Sub
In I17 cell I have a formula
=C6-(D12+(2*D13) + (2*D14) + (3*D15))
My problem is when wrong data is enter in any of the cells (D12, D13, D14, D15) then the cell should be clear automatically after showing prompt message.
How can this be done?
The first thing that you should do is clean up how you check what Target is. It could be multiple cells (Fill Down, paste a range, ...). This is accomplished by intersecting Target with the range you are interested in, and We'll store into a range variable, for later. If there is no overlap, then intersect will return an empty object, which we can test for with is Nothing.
The next thing to note is that odd things (infinite recursion) can happen if we allow the Worksheet_Change event to fire by changing a cell. To prevent this, we will turn off events before calling Room, and turn it back on after we're done.
Next we pass the range that has changed into room, so we can modify it from within that subroutine.
And, finally we modify the affected range after displaying the message. Note that I have used a command to literally clear the cell. Since you are performing calculations based on that data, you might prefer to set it to default value, like 0, using a.value = 0 instead.
Private Sub Worksheet_Change(ByVal Target As Range)
Dim a As Range
Set a = Intersect(Target, Range("D12:D15"))
If Not a Is Nothing Then
Application.EnableEvents = False
Room a
Application.EnableEvents = True
End If
End Sub
Sub Room(a As Range)
Dim lastRow As Long
If IsNumeric(Range("I17")) Then
If Range("I17").Value < 0 Then
MsgBox "msg "
a.ClearContents
End If
End If
End Sub
As a side note, I have a used a bad variable name a, since I don't know what that range represents. You should pick something that describes to future maintainers what is going on.
use this
Private Sub Worksheet_Change(ByVal Target As Range)
Dim t As Range
Set t = Intersect(Target, [D12:D15])
Application.EnableEvents = 0
If Not t Is Nothing Then
Call Room
If [I17] < 0 Then Target.Value = ""
End If
Application.EnableEvents = 1
End Sub

Change worksheet tab color if range of cells contains text

I have tried code that I've found here on stackoverflow, and elsewhere but they aren't working as I think they can. I'll list them below. I'm almost certain this is an easy question.
What I'm trying to do: If in any of the cells in the range A2:A100 there is any text or number whatsoever, then make the worksheet tab red. And I will need to do this on over 20 tabs. This must execute upon opening the workbook, and thus not require manually changing a cell or recalculating.
The problems I've had with other code: As far as I can tell they require editing a cell, and then quickly hitting enter again. I tried SHIFT + F9 to recalculate, but this had no effect, as I think this is only for formulas. Code 1 seems to work albeit with having to manually re-enter text, but no matter what color value, I always get a black tab color.
Code I've tried:
Code 1:
Private Sub Worksheet_Change(ByVal Target As Range)
MyVal = Range("A2:A27").Text
With ActiveSheet.Tab
Select Case MyVal
Case ""
.Color = xlColorIndexNone
Case Else
.ColorIndex = 6
End Select
End With
End Sub
Code 2: This is from a stackoverflow question, although I modified the code slightly to fit my needs. Specifically, if in the set range there are no values to leave the tab color alone, and otherwise to change it to color value 6. But I'm sure I've done something wrong, I'm unfamiliar with VBA coding.
Private Sub Worksheet_Calculate()
If Range("A2:A100").Text = "" Then
ActiveWorkbook.ActiveSheet.Tab.Color = xlColorIndexNone
Else
ActiveWorkbook.ActiveSheet.Tab.Color = 6
End If
End Sub
Thanks for your help!
I posted this on superuser first, but perhaps stackoverflow is more appropriate since it is explicitly programming-related.
Only two things will be able to switch the condition in this statement:
If Range("A2:A100").Text = "" Then
You've already identified both of them, changing the contents of the one of the cells in that range on a worksheet, or a formula in one of those cells recalculating to or from a value of "". As far as event triggers go, if the formula result changes, both the WorkSheet_Calculate and Worksheet_Change events will fire. Of the two, Worksheet_Change is the one to respond to, because WorkSheet_Calculate will only fire if any of the cells in A2:A100 contain a formula. Not if they only contain values - your "Code 2" isn't wrong, the event was just never firing.
The simple solution is to set your tab colors when you open the workbook. That way it doesn't matter if you have to activate a cell in that range and change it - that's only way the value you're testing against is going to change.
I'd do something like this (code in ThisWorkbook):
Option Explicit
Private Sub Workbook_Open()
Dim sheet As Worksheet
For Each sheet In Me.Worksheets
SetTabColor sheet
Next sheet
End Sub
Private Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
If Not Intersect(Target, Sh.Range("A2:A100")) Is Nothing Then
SetTabColor Sh
End If
End Sub
Private Sub SetTabColor(sheet As Worksheet)
If sheet.Range("A2:A100").Text = vbNullString Then
sheet.Tab.Color = xlColorIndexNone
Else
sheet.Tab.Color = 6
End If
End Sub
EDIT: To test for the presence of specific text, you can do the same thing but need to have the test check every cell in the range you're monitoring.
Private Sub SetTabColor(sheet As Worksheet)
Dim test As Range
For Each test In sheet.Range("A2:A100")
sheet.Tab.Color = xlColorIndexNone
If test.Text = "whatever" Then
sheet.Tab.Color = vbRed
Exit For
End If
Next test
End Sub
Maybe test the len of the trimmed joined string of cells:
Private Sub Worksheet_Calculate()
If Len(Trim(Join(Application.Transpose(Range("A2:A100"))))) = 0 Then
ActiveWorkbook.ActiveSheet.Tab.Color = xlColorIndexNone
Else
ActiveWorkbook.ActiveSheet.Tab.Color = 6
End If
End Sub
This code will fire off every time the sheet calculates though as it is event code, I am not sure if that is what you want? If not then post back and we can drop it into a normal sub for you and make it poll all the sheets to test.
Worksheet_Change function will get called everytime there's change in the target range. You just need to place the code under Worksheet. If you have placed the code in the module or Thisworkbook then it wont work.
Paste the below in Sheet1 of your workbook and check if it works. Of Course you will need to do modification to the below code as I have not written complete code.
Private Sub Worksheet_Change(ByVal Target As Range)
Dim WatchRange As Range
Dim IntersectRange As Range
Set WatchRange = Range("A1:A20")
Set IntersectRange = Intersect(Target, WatchRange)
If IntersectRange Is Nothing Then
''Here undo tab color
Else
ActiveSheet.Tab.ColorIndex = 6
End If
End Sub

Use VBA to render cell containing drop down list, read only if range has value

how do I, using VBA, make a G1 read only if any cell in a range say like A4:E50 has a value? My intent is to disable the option in G1 which is a drop down list, as soon as the user populates any of the cells in range A4:E50. If the users deletes all the values in the range, only then will the options in G1 be available. How do i achieve this?
This is a quick solution I just came up with... Not pretty, but it'll do the trick:
First run this macro just once:
Sub LockOneTime()
ActiveSheet.Cells.Locked = False
ActiveSheet.Range("G1").Locked = True
End Sub
Then put this in your worksheet code:
Private Sub Worksheet_Change(ByVal Target As Range)
If Application.WorksheetFunction.CountA(Range("A1:E40")) > 0 Then
ActiveSheet.Protect contents:=True
Else
ActiveSheet.Protect contents:=False
End If
End Sub
It's a quick and dirty way to get what you're looking to achieve...
EDIT Based upon Other cells being Locked:
Given you can't use worksheet protection to avhieve your goal, just put this code in your worksheet's code module (You no longer need the first LockOneTime macro):
Private Sub Worksheet_Change(ByVal Target As Range)
If Not (Intersect(Target, Range("G1")) Is Nothing) Then
If Application.WorksheetFunction.CountA(Range("A4:E50")) > 0 Then
Application.EnableEvents = False
MsgBox "You cannot change the value in cell G1"
Application.Undo
Application.EnableEvents = True
End If
End If
End Sub
This won't let a change happen to cell G1, BUT its draw-back is, assuming you changed a lot of cells and G1 was one of them, it won't let any changes happen... In other words, if G1 is one of the cells being changed, then none of the cells will be allowed to be changed.
Hope this is ok by you, otherwise, the code gets a bit more complex and involved....