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Storing previously entered words in cache

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qtcreatorline editusernamecaching
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  • L Offline
    L Offline
    Lasith
    wrote on 26 Oct 2017, 10:41 last edited by
    #1

    In my Qt Desktop app there is a login form! The user has to enter the Username and password to login to the app! The login is working but I want to store the previously entered usernames so that when next time I open the app and enter first letter of a user name the list of user names starting with that letter(which had previously been entered) should appear! How can I achieve this?

    J 1 Reply Last reply 26 Oct 2017, 11:13
    0
    • L Lasith
      26 Oct 2017, 10:41

      In my Qt Desktop app there is a login form! The user has to enter the Username and password to login to the app! The login is working but I want to store the previously entered usernames so that when next time I open the app and enter first letter of a user name the list of user names starting with that letter(which had previously been entered) should appear! How can I achieve this?

      J Offline
      J Offline
      jsulm
      Lifetime Qt Champion
      wrote on 26 Oct 2017, 11:13 last edited by
      #2

      @Lasith Just write the entered words in a file. When the app later starts it reads the file. Then, depending on what you use to enter username you can use http://doc.qt.io/qt-5/qlineedit.html#setCompleter

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      L 1 Reply Last reply 1 Nov 2017, 07:01
      4
      • J jsulm
        26 Oct 2017, 11:13

        @Lasith Just write the entered words in a file. When the app later starts it reads the file. Then, depending on what you use to enter username you can use http://doc.qt.io/qt-5/qlineedit.html#setCompleter

        L Offline
        L Offline
        Lasith
        wrote on 1 Nov 2017, 07:01 last edited by
        #3

        @jsulm Thanx but if we consider something like a search text box how can we get the list of words without keeping them in a text file?

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        • V Offline
          V Offline
          VRonin
          wrote on 1 Nov 2017, 08:12 last edited by
          #4

          Store a QStringList in QSettings and pass it to a QStringListModel and then to the completer, maybe

          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
          ~Napoleon Bonaparte

          On a crusade to banish setIndexWidget() from the holy land of Qt

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          26 Oct 2017, 10:41

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