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Excel/Default Value,Data Validation, ruling for cell in excel


Hi Stuart,
Good Day!!!
I am in the process of creating a reporting template for a team in excel. In which I wish to include certain rules to the cells, they are:
1. The default value should appear as zero in each cell.
2. The users are allowed only to key in the numbers which are greater than or equal to zero.
3. If the user delete content in the cell the cell should automatically pick zero as a default value.

Can you please guide me with your expert advise.

To restrict a cell to numbers zero or greater, select the cell(s), and choose Data, Data Validation, Settings, Allow: Whole number, Data: greater than or equal to, Minimum: 0, OK, OK.

To automatically make cell A1 return to zero when user deletes its content... if you don't know how to use vba ("Visual Basic for Applications", aka "macros"), this is impossible. If you do know how to use vba, use the following procedure:

Private Sub Worksheet_Change(ByVal Target As Range)
   If Not (Intersect(Target, Range("a1")) Is Nothing) Then
       If Range("a1").Formula = "" Then
         Application.EnableEvents = False
         Range("a1").Value = 0
         Application.EnableEvents = True
       End If
   End If
End Sub
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Stuart Resnick


I can answer questions relating to MS Excel formulas, or to programming with vba (Visual Basic for Applications) in the Excel environment. Please follow the following guidelines: your question should focus on one specific issue you want to learn. It's beyond the scope of this free service for me to create entire projects or complex vba solutions for you from scratch. You should be able to do most of the work yourself, and come here when you need help with a specific point you're stuck on. ALWAYS include a simple, concrete example illustrating what you want to learn. Explain this example in detail in the text of your question (what data is in which cells of which sheets, etc). Be very precise about the results you want, using this sample to make the logic clear. Always keep these examples SIMPLE. Never e.g. use 18 worksheets in your example if using 2 or 3 will do. Never use ranges like AI567:BB865 if using a range like A1:B3 will do. Thanks.


As a consultant, I've designed Excel tools since the 90s, working for the Federal Reserve Bank, AT&T, and (currently) Gap Inc.

My only "education" comes from 2 decades of doing spreadsheet/programming work, with major SF Bay Area corporations such as AT&T, Federal Reserve Bank, and Gap Inc.

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