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Data Validation: Date asked, ignores when whole number entered

  1. 07-24-2012, 07:20 AM #1
    mattl75
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    Data Validation: Date asked, ignores when whole number entered

    Hello,

    I have a problem with the Data Validation tool.
    I have a column where the user has to put a date in the dd/mm/aaaa format.
    I have set Validation data in this area to: Allow Date not equal to 1/1/1900, with the message and alert ticked.
    If I format the cells to General, Validation data lets a user enter a whole number without alerting, and it stays as a whole number in the cell.
    If I format the cells to Date jj/mm/aaaa, the whole number entered by the user is transformed to a (false) date and Validation Data doesn't alert him neither.

    What should I do?

    Thanks
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  2. 07-24-2012, 09:12 AM #2
    JBeaucaire
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    Re: Data Validation: Date asked, ignores when whole number entered

    Show us what you mean with a sample workbook, not quite following that visually.
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  3. 07-24-2012, 09:18 AM #3
    ChemistB
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    Re: Data Validation: Date asked, ignores when whole number entered

    With Excel, a date is simply a whole number formatted differently. Unfortunately, the data validation cannot see how you have formatted the cell. For example 7/24/2012 is the same as 41114. You could format those cells, unprotect them but protect the workbook. That would prevent anyone from changing the formatting.
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