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  1. #1
    reptar
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    restrict entries in column

    Im running Excel97 SR1 and have palyed around with COUNTA to restrict the number of entries in a column to one. The sheet allows users to choose a serice down the left side and to specify a time in a column that they would like to perform the service. How can I limit them to one service per time slot? They just type an X to select the time. COUNTA just keeps giving errors.
    Thank you for any ideas.

  2. #2
    Uranium Lounger
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    Re: restrict entries in column

    The following formula will put a message in the cell it is entered in if the number of X's in B2 through B10 is more than one:

    <pre>=IF(COUNTA(B2:B10)>1,"Only one service allowed","")
    </pre>


    That won't prevent it, it will just display the message. If you want to prevent it, you will need to write code in the WorksheetChange event procedure.
    Legare Coleman

  3. #3
    Gold Lounger
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    Re: restrict entries in column

    You could set up an additional column with the following typr of formula
    =IF(COUNTA(C2:M2)=0,"X","") and use the results of that formula as the basis for a Data Validation. In Tools, Data, Validation select allow List, and enter =$B2 (for example). Copy that to all the cells involved, and once an entry is made in one row, no further entries should be accepted.

    Attached is a workbook to demonstrate. I used column B (which could be hidden) for the formula, and applied the validation from C to M.

    Hope it is useful

    Andrew C
    Attached Files Attached Files

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