Excel if value in range is larger than value in a cell, clear value of cell in range - excel

I want to type a number in B3. If a number in the range B8 to B200 is larger than the value in B3, the cell in the range whose value is larger than that of B3's value will be cleared of its contents. (I tried doing this with the code attached)
(OR:
If a value is entered in B3, a drop down of all the values that are less than or equal to the value in B3 is generated (that way there is no way to exceed the value in B3).)
Sub ProcessLineNumberValidation()
Dim QTY As Integer
Dim ProcessNum As Integer
Dim ws As Worksheet
Set ws = ThisWorkbook.Sheets("Ozone Generator")
QTY = ws.Sheets("Ozone Generator").Cells(3, 2).Value
For i = 8 To 200
ProcessNum = ws.Sheets("Ozone Generator").Cells(i, 2).Value
If ProcessNum > QTY Then
ws.Sheets("Ozone Generator").Cells(i, 2).ClearContents
End If
Next i
End Sub

First, you use Set ws = Thisworkbook.Sheets("Ozone Generator")
Then, you use ws.Sheets("Ozone Generator") on multiple lines which is the likely source of your problem. If you substitute ws back in to the above line of code you get:
Thisworkbook.Sheets("Ozone Generator").Sheets("Ozone Generator")
Which is not a valid cell reference. Just use ws.Cells(.... which will result in the below code (corrected for problem and applied more standard spacing, ordering, & indentation methods to code)
Option Explicit
Sub ProcessLineNumberValidation()
Dim ws As Worksheet: Set ws = ThisWorkbook.Sheets("Ozone Generator")
Dim QTY As Integer, ProcessNum as Integer, i
QTY = ws.Cells(3, 2).Value
For i = 8 To 200
ProcessNum = ws.Cells(i, 2).Value
If ProcessNum > QTY Then
ws.Cells(i, 2).ClearContents
End If
Next i
End Sub
You can consider this alternative that has the same output but will be quicker. For Each loops are faster than For i = loops when looping through ranges like this. Also toggling off ScreenUpdating will make this look cleaner from a user standpoint.
Sub ProcessLineNumberValidation()
Dim ws As Worksheet: Set ws = ThisWorkbook.Sheets("Ozone Generator")
Dim MyRange As Range: Set MyRange = ws.Range("B8:B200")
Dim MyCell As Range
Application.ScreenUpdating = False
For Each MyCell In MyRange
If MyCell > ws.Cells(3, 2) Then MyCell.ClearContents
Next MyCell
Application.ScreenUpdating = True
End Sub

this could be a work for Autofilter():
Sub ProcessLineNumberValidation()
With ThisWorkbook.Sheets("Ozone Generator").Range("B7:B200") 'reference your sheet range B7:B200 (B7 is the header, values are from B8 downwards)
.AutoFilter field:=1, Criteria1:=">" & .Parent.Range("B3").Value2 ' filter referenced range with values greatre than referenced range sheet cell B3
If Application.WorksheetFunction.Subtotal(103, .Resize(, 1)) > 1 Then .Offset(1).Resize(.Rows.Count - 1).SpecialCells(xlCellTypeVisible).ClearContents ' clear any filtered cell other than header
.Parent.AutoFilterMode = False ' remove autofilter
End With
End Sub
and if you want ProcessLineNumberValidation() being called on every "Ozone Generator" sheet B3 cell change then place this code in that sheet code pane:
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address = "$B$3" Then 'if cell B3 has changed
Application.EnableEvents = False ' disable events to prevent this event handler being called in a possibly infinite loop
ProcessLineNumberValidation ' process your range
Application.EnableEvents = True ' enable events back on
End If
End Sub

Related

How to divide every cell in a column by a constant in VBA?

I am processing a data set that has about 50 columns, and the same columns are always off by a factor of ten. So, I just want to hardcode the specific columns (starting with F here) and divide every cell in the column by 10. Right now I am getting a "Type Mismatch" error. The code is below:
Sub FixData()
Dim finalRow As Long
Dim rng As Range
Dim cell As Range
finalRow = Range("A100000").End(xlUp).Row
Set rng = Range("F1:F" & finalRow)
For Each cell In rng
cell.Value = cell.Value / 10
Next cell
End Sub
why loop when you can simply paste special and divide.
errors within the cells are ignored.
in vba, here is the code
Range("G10").Copy
Range("B2:E8").PasteSpecial Paste:=xlPasteValues, Operation:=xlDivide
Application.CutCopyMode = False
test if cell is an error and then test if it is a number prior to dividing:
Sub FixData()
Dim finalRow As Long
Dim rng As Range
Dim cell As Range
finalRow = Range("A100000").End(xlUp).Row
Set rng = Range("F1:F" & finalRow)
For Each cell In rng
If Not IsError(Cell) Then
If IsNumeric(cell) and cell <> "" Then
cell.Value = cDbl(cell.Value) / 10
End If
End If
Next cell
End Sub

Clear all cells from a certain range that starts from the next blank cell in Column A

I am trying to write some VBA in excel that will clear all cells starting from the next empty cell in Column A (data starts from A2). For example, if A5 is blank then I want A5:P300 to all be cleared (as in all Formula and Data gone). And so on... so if A20 is blank then it deletes everything from A20:P300..
How would I go about writing this? I also need it to refer to the active workbook but a specific worksheet called ("Develop").
Thanks for any help provided.
Sub Clear()
Dim x As Worksheet
Dim rng, cell As Range
Set x = ThisWorkbook.Worksheets("R&DCosts(2)")
Set rng = x.Range("A2:A340").Cells(Rows.Count, 1).End(xlUp)
For Each cell In rng
If cell.Value = "" Then
x.Range(cell.Address & ":P350").ClearContents
End
End If
Next cell
End Sub
Try this code, please:
Sub clearRange_Bis()
Dim sh As Worksheet, firstEmpt As Long
Set sh = ThisWorkbook.Worksheets("R&DCosts(2)")
firstEmpt = sh.Range("A1").End(xlDown).Row + 1
If firstEmpt > 1000000 Then
sh.Range("A2:P300").Clear
Else
sh.Range("A" & firstEmpt & ":P300").Clear
End If
End Sub
A more simple solution
Option Explicit
Sub Clear()
Dim x As Worksheet
Dim rng, cell As Range
Set x = ThisWorkbook.Worksheets("RDCosts(2)") ' you cannot use "&"
Set rng = x.Range("A2:A340", Cells(Rows.Count, 1).End(xlUp))
For Each cell In rng
If cell.Value = "" Then
x.Range(cell.Address & ":P350").ClearContents
End
End If
Next cell
End Sub

How to alter the color of cells if they are a certain other color?

I have written a short Macro to change cells of a given colour to another colour in a workbook. This code throws no errors however it simply does nothing.
I have already tested the colour codes to see if they are correct using MsgBox ActiveCell.DisplayFormat.Interior.color
Option Explicit
Sub Recolour()
Application.ScreenUpdating = False
Dim Sheet As Worksheet
Dim Rng As Range
Dim OldColour As Variant
Dim NewColour As Variant
Dim Cell As Range
Set Rng = ActiveSheet.Range("A1:Y457")
OldColour = 128
NewColour = RGB(134, 38, 51)
For Each Sheet In ThisWorkbook.Worksheets
For Each Cell In Rng.Cells
If ActiveCell.DisplayFormat.Interior.Color = OldColour _
Then _
Set ActiveCell.DisplayFormat.Interior.Color = NewColour _
Else
Next Cell
Next Sheet
Application.ScreenUpdating = True
End Sub
This is probably something simple and daft however I need to ask.
DisplayFormat is read-only. If you want to change the property, you need to drop DisplayFormat. Also, if you are using For each Cell, then you should refer to Cell, not ActiveCell.
For Each Sheet In ThisWorkbook.Worksheets
For Each Cell In Rng.Cells
If Cell.Interior.color = OldColour Then
Cell.Interior.color = NewColour
End if
Next Cell
Next Sheet
You only need to Set object variables in VBA, your if statement is also problematic. Try:
For Each Sheet In ThisWorkbook.Worksheets
For Each Cell In Rng.Cells
If ActiveCell.DisplayFormat.Interior.color = OldColour Then
ActiveCell.DisplayFormat.Interior.color = NewColour
End if
Next Cell
Next Sheet

VBA Merging Columns in Excel

I am trying to write a simple thing that will merge cells in excel with the same information. What I've got thus far is what follows:
Private Sub MergeCells()
Application.ScreenUpdating = False
Application.DisplayAlerts = False
Dim rngMerge As Range, cell As Range
Set rngMerge = Range("B2:B1000") 'Set the range limits here
Set rngMerge2 = Range("C2:C1000")
MergeAgain:
For Each cell In rngMerge
If cell.Value = cell.Offset(1, 0).Value And IsEmpty(cell) = False Then
Range(cell, cell.Offset(1, 0)).Merge
GoTo MergeAgain
End If
Next
Application.DisplayAlerts = False
Application.ScreenUpdating = True
For Each cell In rngMerge2
If cell.Value = cell.Offset(1, 0).Value And IsEmpty(cell) = False Then
Range(cell, cell.Offset(1, 0)).Merge
GoTo MergeAgain
End If
Next
Application.DisplayAlerts = False
Application.ScreenUpdating = True
End Sub
So the problem I'm encountering is split into two issues, First I'm trying to get this to work for columns A - AK but as you can see above I don't know how to combine it without just making it repeat the same thing 30 times over. Is there another way to group it.
Also when I assign the range to Range("AF2:AF1000") and Range("AG2:AG1000") then excel in its entirety crashes. I was hoping you all could help steer me into the right direction.
Repeat code inside a subroutine is a sign that some of the routines functionality should be extracted into its own method.
Performance
1000 seems like an arbitrary row: Range("B2:B1000"). This range should be trimmed to fit the data.
It is better to Union all the cells to be merged and merge them in a single operation.
Application.DisplayAlerts does not need to be set to True. It will reset after the subroutine has ended.
Public Sub MergeCells()
Dim Column As Range
Application.ScreenUpdating = False
With ThisWorkbook.Worksheets("Sheet1")
For Each Column In .Columns("A:K")
Set Column = Intersect(.UsedRange, Column)
If Not Column Is Nothing Then MergeEqualValueCellsInColumn Column
Next
End With
Application.ScreenUpdating = True
End Sub
Sub MergeEqualValueCellsInColumn(Target As Range)
Application.DisplayAlerts = False
Dim cell As Range, rMerge As Range
For Each cell In Target
If cell.Value <> "" Then
If rMerge Is Nothing Then
Set rMerge = cell
Else
If rMerge.Cells(1).Value = cell.Value Then
Set rMerge = Union(cell, rMerge)
Else
rMerge.Merge
Set rMerge = cell
End If
End If
End If
Next
If Not rMerge Is Nothing Then rMerge.Merge
End Sub
You keep modifying the cells in rngMerge but not the definition of it before reusing it. This would likely work better if you started at the bottom and worked up as the situation is similar to inserting or deleting rows.
Option Explicit
Private Sub MergeCells()
Dim i As Long, c As Long, col As Variant
Application.DisplayAlerts = False
'Application.ScreenUpdating = false
col = Array("B", "C", "AF", "AG")
For c = LBound(col) To UBound(col)
For i = Cells(Rows.Count, col(c)).End(xlUp).Row - 1 To 2 Step -1
If Cells(i, col(c)).Value = Cells(i, col(c)).Offset(1, 0).Value And Not IsEmpty(Cells(i, col(c))) Then
Cells(i, col(c)).Resize(2, 1).Merge
Cells(i, col(c)).HorizontalAlignment = xlCenter
Cells(i, col(c)).VerticalAlignment = xlCenter
End If
Next i
Next c
Application.DisplayAlerts = True
'Application.ScreenUpdating = True
End Sub
I've added a wrapping loop that cycles through multiple columns pulled from an array.
I've also notice the Private nature of the sub procedure and I'm guess that this is in a worksheet's private code sheet (right-click name tab, View Code). If the code is to be run on multiple worksheets, it belongs in a public module code sheet (in the VBE use Insert, Module) and proper parent worksheet references should be added to the Cells.
It appears you are running the same procedure on rngMerge and rngMerge2, and that they are the same size.
I suggest the following, where you just iterate through the columns, and then through the cells in each column:
Option Explicit
Private Sub MergeCells()
Application.ScreenUpdating = False
Application.DisplayAlerts = False
Dim rngMerge As Range, cell As Range
Dim rngFull As Range
Set rngFull = Range("B2:AK1000")
For Each rngMerge In rngFull.Columns
For Each cell In rngMerge.Cells
If cell.Value = cell.Offset(1, 0).Value And IsEmpty(cell) = False Then
Range(cell, cell.Offset(1, 0)).Merge
'Add formatting statements as desired
End If
Next cell
Next rngMerge
Application.DisplayAlerts = False
Application.ScreenUpdating = True
End Sub
NOTE As written, this will only handle duplicates. If you have triplets or more, only pairs of two will be combined.
I would frame the problem a bit differently. Your code goes through each cell in the range, compares it to the next cell, and, if the values of the two are equivalent, then merge them together. I think it a bit clearer to check each cell against the previous cell value instead.
Also, you can iterate over the columns in order to avoid code repetition (as mentioned in other answers).
Sub MergeCells()
Dim wks As Worksheet
Dim mergeRange As Range
Dim column As Range
Dim cell As Range
Dim previousCell As Range
'Because the Sheets property can return something other than a single worksheet, we're storing the result in a variable typed as Worksheet
Set wks = Sheets("Sheet1")
'To run this code across the entire "used part" of the worksheet, use this:
Set mergeRange = wks.UsedRange
'If you want to specify a range, you can do this:
'Set mergeRange = wks.Range("A2:AK1000")
For Each column In mergeRange.Columns
For Each cell In column.Cells
If cell.Row > 1 Then
'cell.Offset(-1) will return the previous cell, even if that cell is part of a set of merged cells
'In that case, the following will return the first cell in the merge area
Set previousCell = cell.Offset(-1).MergeArea(1)
If cell.Value = previousCell.Value And Not IsEmpty(cell) Then
cell.Value = ""
wks.Range(previousCell, cell).Merge
End If
End If
Next
Next
End Sub
If you want to run this code on multiple ranges, you can isolate the code which carries out the merges within a range, into its own Sub procedure:
Sub MergeCellsInRange(mergeRange As Range)
For Each column In mergeRange.Columns
For Each cell In column.Cells
If cell.Row > 1 Then
Set previousCell = cell.Offset(-1).MergeArea(1)
If cell.Value = previousCell.Value And Not IsEmpty(cell) Then
cell.Value = ""
wks.Range(previousCell, cell).Merge
End If
End If
Next
Next
End Sub
and call it multiple times from your main procedure:
Sub MergeCells()
Dim wks As Worksheet
Dim mergeRange As Range
Dim column As Range
Dim cell As Range
Dim previousCell As Range
Set wks = Sheets("Sheet1")
MergeRange wks.Range("A2:U1000")
MergeRange wks.Range("AA2:AK1000")
End Sub
References:
Excel object model
Global Sheets property, Sheets collection
Worksheet object
UsedRange property
Range object
Cells property
Row property
Offset property
MergeArea property
Value property
VBA
For Each ... In construct
IsEmpty function
Dim statement
Set statement
Sub statement

Hide/Unhide a row based on the hidden/unhidden status of a range of cells

I want to unhide a single row if an ENTIRE range of rows is hidden. I want to hide this row if even a SINGLE row within the range is unhidden. What is the syntax for this? My current code is as follows:
Public Sub MySub()
Application.ScreenUpdating = False
With Range("A1:A5")
.EntireRow.Hidden = False
For Each cell In Range("A1:A5")
Select Case cell.Value
Case Is = "-"
cell.EntireRow.Hidden = True
End Select
Next cell
End With
Application.ScreenUpdating = True
End Sub
I think I understand. How's this:
Sub test()
Dim cel As Range, rng As Range
Dim hideRow&, numDashes&
Set rng = Range("A1:A5")
hideRow = rng.Count + 1
For Each cel In rng
If cel.Value = "-" Then
numDashes = numDashes + 1
Rows(cel.Row).EntireRow.Hidden = True
End If
Next cel
If numDashes = rng.Count Then
' If all cells in the range are '-'
Rows(hideRow).EntireRow.Hidden = False
Else
Rows(hideRow).EntireRow.Hidden = True
End If
End Sub
I'm kind of assuming that you want to hide/unhide Row 6, since it's one below your range's last row. Therefore, I created a variable to hold this. This way, if you want to change your range to say A1:A100, all you have to do is adjust the rng, and it'll look to hide/unhide row 101. Of course, if you just need it to be 6, then just do hideRow = 6.
Edit: For fun, I tried to reduce the use of the counting variable numDashes and tried to the part where you check your range for all - to be more concise. The below should work too, but might need a tweak or two:
Sub test2()
Dim cel As Range, rng As Range
Dim hideRow&
Set rng = Range("A1:A5")
hideRow = rng.Count + 1
'Check to see if your range is entirely made up of `-`
If WorksheetFunction.CountIf(rng, "-") = rng.Count Then
Rows(hideRow).EntireRow.Hidden = False
' If you want to stop your macro if ALL range values are "-", then uncomment the next line:
'Exit Sub
Else
Rows(hideRow).EntireRow.Hidden = True
End If
For Each cel In rng
If cel.Value = "-" Then
Rows(cel.Row).EntireRow.Hidden = True
End If
Next cel
End Sub
You can do this with a formula in a helper column. I used this one for financial statements to suppress rows where multiple column are all zero to shorten up the report.
=IF(AND(SUM(A7:R7)<1,SUM(A7:R7)>-1),IF(OR(ISNUMBER(LEFT(H7,4)),ISBLANK(H7),ISERR(VALUE(LEFT(H7,4)))),"Show","Hide"),"Show").
Then filter the rows by that column.

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