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Textbox to detect if there is a duplicate

  1. #1
    Forum Contributor
    Join Date
    04-23-2013
    Location
    India
    MS-Off Ver
    Excel 2003 and 2007
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    227

    Textbox to detect if there is a duplicate

    Hello, I have three textboxes. I just want if user input a data in textbox1, for example "100", it will search in Sheet1 in Range A:A, if it finds duplicate like in Sheet1 A:A, msgbox will prompt "This account number was already used", if not then do nothing.
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  2. #2
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    Join Date
    03-12-2013
    Location
    Viet Nam
    MS-Off Ver
    Excel 2003
    Posts
    25

    Re: Textbox to detect if there is a duplicate

    You can use find menthod for this case.
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  3. #3
    Forum Contributor
    Join Date
    04-23-2013
    Location
    India
    MS-Off Ver
    Excel 2003 and 2007
    Posts
    227

    Re: Textbox to detect if there is a duplicate

    Hi, what if value is in 70,000+ row? how do i set the range to last row?

  4. #4
    Registered User
    Join Date
    03-12-2013
    Location
    Viet Nam
    MS-Off Ver
    Excel 2003
    Posts
    25

    Re: Textbox to detect if there is a duplicate

    You change
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