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auto completions in QComboBox

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  • D Offline
    D Offline
    DungeonLords
    wrote last edited by
    #1

    How to set auto completions in QComboBox? I want to have ability to open QComboBox and type, for example, a4 to select corresponding (last) line.
    combo1.png
    My example is based on doc. Behaviour makes me confuse:

    1. I can press "a" to go to next item. But after push "a" I should wait about 3 seconds and then I can push "a" again to go to the next item. When last item is selected, I can push "a" to go to initial item, like on circle. It is strange. Why this happen?
    2. I open QComboBox, then type "a4" but "a2" is selected instead of "a4". It looks like auto completions is totally doesn't work...
    3. How to do QComboBox without setEditable(true)? I want design similar to GitHub Desktop: I can type "Qt" to go to corresponding item but user has no ability to write any text directly to QComboBox.
      GitHub Desktop qt.png
    4. I want auto completions between a1, a2, .., a20 but user on keyboard will type number without a: just 1 or 2 or 20 and inside QComboBox text should be with a: a1 or a2 or a20. How to do it?
    QStringList wordList;
    wordList << "a1" << "a2" << "a3" << "a4";
    
    QComboBox *combobox = new QComboBox(this);
    foreach(QString str, wordList){
        combobox->addItem(str);
    }
    combobox->setEditable(true);
    
    QCompleter *completer = new QCompleter(wordList, this);
    completer->setCaseSensitivity(Qt::CaseInsensitive);
    combobox->setCompleter(completer);
    

    Ubuntu 25.10 (wayland)
    Qt 6.11.0-rc and Qt 6.8.0-rc were tested

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    • CKurduC Offline
      CKurduC Offline
      CKurdu
      wrote last edited by
      #2

      1 and 2 worked on my computer debian 12 KDE X11. Maybe the problem is related with wayland.

      You reap what you sow it

      1 Reply Last reply
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