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Forum Update on Monday, May 27th 2025

QRegExp with QLineEdit

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qregularexpressqlineedit
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  • E Offline
    E Offline
    Endar
    wrote on last edited by
    #1

    How can I insert in a QLineEdit digits and letters but first 2 character I want to letters and then 3 digits and again 2 letters
    For eg: AA122BD ?

    E 1 Reply Last reply
    0
    • E Endar

      How can I insert in a QLineEdit digits and letters but first 2 character I want to letters and then 3 digits and again 2 letters
      For eg: AA122BD ?

      E Offline
      E Offline
      Endar
      wrote on last edited by
      #2
      This post is deleted!
      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #3

        Hi,

        You can use the QRegExpValidator class. If you're on Qt 5 then please consider using QRegularExpression

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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        • BuleronB Offline
          BuleronB Offline
          Buleron
          wrote on last edited by Buleron
          #4

          @Endar
          I hope this will help you
          QRegExpValidator* validator = new QRegExpValidator(QRegExp("[A-a-Z-z][A-a-Z-z]\\d{0,2}\\d[A-a-Z-z][A-a-Z-z]"));
          ui->lineEdit->setValidator(validator);

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          0

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