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Allow alphabets and alphanumeric only

  1. #1
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    Allow alphabets and alphanumeric only

    Hi

    I need two formulae in Data validation

    1. Cell should allow only alphabets (a-z and A-Z) and should not allow special charecters like ~,%,$ etc.,
    2. Cell should allow only alphabets, numeric values (a-z , A-Z, 0-9) and should not allow special charecters like ~,%,$ etc.,

    these things I need to implement in my project urgently..
    Please help

    Thanks in advance

  2. #2
    Forum Expert NBVC's Avatar
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    Re: Allow alphabets and alphanumeric only

    The simplest way would be to list the alphabet in a column (no need to do both upper and lower, one type will suffice) and then underneath list the numbers 0-9

    You can name the alpha range, e.g. ALPHA and the alpha-numeric range as ALPHANUM


    then data validation, choose custom and enter formula:

    =MATCH(A1,ALPHA,0) for alpa condition

    and

    =MATCH(A1,ALPHANUM,0) for the alphanumeric condition

    where A1 is top-left most cell you select to apply validation to.
    Where there is a will there are many ways.

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  3. #3
    Forum Guru Kyle123's Avatar
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    Re: Allow alphabets and alphanumeric only

    NBVC's way is the best, but if you need additional flexibility, try the below:

    Please Login or Register  to view this content.

  4. #4
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    Re: Allow alphabets and alphanumeric only

    Can anybody help me with the Data Validation formula for hex codes please, I want my hex codes to come like ex: 4C4F56, not 4c4f56... but I don't know the formula to put in to get it to go like I want - HELP ME PLEASE!

  5. #5
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    Re: Allow alphabets and alphanumeric only

    use this formula then it will work fine :-

    =IF(A2="",TRUE,IF(ISERROR(SUMPRODUCT(SEARCH(MID(A2,ROW(INDIRECT("1:"&LEN(A2))),1),"0123456789abcdefghijklmnopqrstuvwxyz"))),FALSE,TRUE))

  6. #6
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    Re: Allow alphabets and alphanumeric only

    Quote Originally Posted by narsingh View Post
    use this formula then it will work fine :-

    =IF(A2="",TRUE,IF(ISERROR(SUMPRODUCT(SEARCH(MID(A2,ROW(INDIRECT("1:"&LEN(A2))),1),"0123456789abcdefghijklmnopqrstuvwxyz"))),FALSE,TRUE))
    Awesome, event i don't understand how this can works, but this is what i looking for... GREAT

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