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Need zero value in Excel

Posted on 2015-02-05
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Last Modified: 2016-02-11
I need a cell in Excel to have a zero value or a value (I don't want the cell to be blank).
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Question by:Conernesto
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by:ProfessorJimJam
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=if(a2="",0,a2)
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by:Conernesto
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Can the celll start out with a zero value for the user? And then, the zero value can be changed but not blanked?
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by:ProfessorJimJam
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Do you want to change data or data validation ?
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by:Conernesto
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data validation
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by:Rob Henson
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Can the cell start out with a zero value for the user?
When does this have to occur? On opening the Workbook for the first time?

Data Validation can be set such that the cell can not be deleted. Some more details would be good.

Thanks
Rob H
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by:Rob Henson
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Hmm, I thought these Custom DV formulas would work but they don't:

=LEN(E6)<>0
=E6<>""

If it is only certain cells or a range, I suspect you will be able to achieve it with VBA.

Why is blank an issue anyway?
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by:ProfessorJimJam
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ok
there are VBA solutions, but i prefer formula in data validation

select the cells that you want to apply the data validation on them.

in the example see the screenshot.   A1:D10   and then in Data validation custom put this formula =NOT(ISBLANK(A1))  then make sure to uncheck the "ignore blanks"

then it will work.

Capture.PNG
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by:Conernesto
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I tried what you sent, but I am still able to have blank values. What I did that worked is as follows:

1 On cells A1:A5 (my sample area), I changed the cell format to Custom.
2 I entered zeros on A1:A5
3 I created a range file called Values and enter 1000000
4 In the Data Validation screen under settings I set Allow: Whole number, Data: less than or equal to Maximum: = Values. Ignore blank is checked

I then whent to cell A1 and removed the zero and I got a message that a value must be entered.
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by:ProfessorJimJam
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no no .

you got it wrong.  

in the Data validation under setting  you must select custom the source type the formula =NOT(ISBLANK(A1))

and dont forget to uncheck the "ignore blank" as shown in the screenshot.

then it will work.
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by:Rob Henson
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Conernesto & ProfJJ - I have tried both of your suggestions and neither of them work for me. I am able to delete the contents of the cell thus making it blank.

Conernesto - The only way I am getting your suggestion to work is by replacing the zero with a space; pressing delete does not generate the error message.

Is it just a small range (like A1:A5 in your sample) in the real file? If so a small VBA script could be written to ensure the cells aren't blank.
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by:ProfessorJimJam
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Rob,

from what i understood , the deletion was not part of the question. i believe the questioner asked data validation, if the user want to bypass a cell without filling then the validation error would trigger. however, if author wants to prevent deletion, then it can be done different way.
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by:Rob Henson
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I have assumed the cells are prefilled with 0 or another value and the question was regarding making sure that the contents of the cell stayed that way, ie couldn't be deleted.

Maybe need clarity from Conernesto as to what is meant by blank and, as I asked earlier, why blank is a problem.

Thanks
Rob H
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Author Comment

by:Conernesto
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Rob,

Attached is a copy of my worksheet. On Sheet 1, I set up cells A2:A7. These cells have a zero value. If you try to blank/remove the zero value, you will get a message that the celll can't be blank. This is what I wanted and it works. I can close this question if you agree.

Conernesto.
C--For-Experts-Exchange-Data-Validation.
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by:Rob Henson
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How are you removing the zero? When I press delete I do not get an error message.

If I press Space and enter I do get the message. If that entry were accepted, that is then not blank, it contains a space.

Thanks
Rob
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by:Conernesto
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You are right. So this works if you enter a space and it can be bypassed if you press delete. This is OK if I can't prevent deleting.
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by:Rob Henson
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If that's the case, why was blank an issue in the first place?

You can allow for blank or zero in subsequent formulas, do you need assistance with that?

Rob
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by:Conernesto
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A blank is an issue when you import the information into an Access database. When you create queries you don't get the right answer if there are blank cells.
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Rob Henson earned 250 total points
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Does using "Is Null" not allow for blanks?
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Author Comment

by:Conernesto
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Yes.
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Author Closing Comment

by:Conernesto
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The cell format that I used worked to prevent someone from removing a value from a cell. The user can still delete the content but not clear the amount.
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by:Rob Henson
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The user can still delete the content but not clear the amount.

Can you explain what you mean by this as it doesn't make sense to me. When you delete the content it will clear any value/amount in the cell.
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by:Conernesto
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I don't think that someone will intentionally delete an amount. On the other hand someone can accidentaly clear an amount and if this happens you will be prompted to enter an amount or zero.
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by:Rob Henson
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Delete and clear are the same thing, accidentally or otherwise.
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