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Thread: Macro to clear data

20100104, 23:18 #1
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I have a spreadsheet that I enter data for cash flow purposes on a daily basis. At the beginning of each month I need to clear out the data containing values only as well as values beginnining with an = for eg 20000+50000+25000+74000 etc, but not formulas and text
I need the macro to clear the values , including data that has been added up as explaimned above from row 9 onwards and from column C
Your assistance will be most appreciated
Regards
Howard

20100105, 04:08 #2
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Anything that begins with an = sign, is a formula. How would the code distinguish between those and 'regular' formulas?
Regards,
Rory
Microsoft MVP  Excel.

20100105, 04:38 #3
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20100105, 05:42 #4
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Yes, but you also have some formulas that are straight cell references, or that add up cells using + rather than SUM. Would it be safe to simply clear any formula cells that don't refer to other cells? Also, I assume this should apply only from C9 downwards (and to the right)?
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Rory
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20100105, 06:25 #5
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20100105, 07:05 #6
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Try this code. Note that it assumes you don't have formulas that refer to other sheets.
Code:Sub ClearOldData() Dim rngSearch As Range, rngLastCell As Range, rngCell As Range, rngPrecs As Range Dim lngCalc As Long Set rngLastCell = ActiveSheet.UsedRange.SpecialCells(xlCellTypeLastCell) Set rngSearch = Range("C9", rngLastCell) ' turn off calculation and screen redraw to speed things up With Application .ScreenUpdating = False lngCalc = .Calculation .Calculation = xlCalculationManual End With ' loop through cells For Each rngCell In rngSearch If Not IsEmpty(rngCell) Then ' check if cell contains a formula If rngCell.HasFormula Then ' check if formula refers to other cells; if not, clear it. ' NOTE: this assumes all references are to cells in the same worksheet! On Error Resume Next Set rngPrecs = rngCell.Precedents On Error GoTo 0 If rngPrecs Is Nothing Then rngCell.ClearContents Else Set rngPrecs = Nothing End If Else ' no formula, so clear it. rngCell.ClearContents End If End If Next rngCell ' turn everything back on With Application .Calculation = lngCalc .ScreenUpdating = True End With End Sub
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Rory
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20100105, 08:06 #7
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Hi Rory
Thanks for the help.
The code works well, except that it clears text. Please amend your code so that cells containing text are not cleared
Regards
Howard

20100105, 08:10 #8
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I didn't see any text cells?
Anyway, try this one:
Code:Sub ClearOldData() Dim rngSearch As Range, rngLastCell As Range, rngCell As Range, rngPrecs As Range Dim lngCalc As Long Set rngLastCell = ActiveSheet.UsedRange.SpecialCells(xlCellTypeLastCell) Set rngSearch = Range("C9", rngLastCell) ' turn off calculation and screen redraw to speed things up With Application .ScreenUpdating = False lngCalc = .Calculation .Calculation = xlCalculationManual End With ' loop through cells For Each rngCell In rngSearch If Not IsEmpty(rngCell) and IsNumeric(rngCell.Value) Then ' check if cell contains a formula If rngCell.HasFormula Then ' check if formula refers to other cells; if not, clear it. ' NOTE: this assumes all references are to cells in the same worksheet! On Error Resume Next Set rngPrecs = rngCell.Precedents On Error GoTo 0 If rngPrecs Is Nothing Then rngCell.ClearContents Else Set rngPrecs = Nothing End If Else ' no formula, so clear it. rngCell.ClearContents End If End If Next rngCell ' turn everything back on With Application .Calculation = lngCalc .ScreenUpdating = True End With End Sub
Regards,
Rory
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20100105, 11:33 #9
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Hi Rory
Thanks for all the effort in writing the code, which is much appreciated
The code not works perfectly
Regards
Howard

20100105, 11:49 #10
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Did you mean 'not works' or 'now works'?
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Rory
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