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Thread: QList<Object>into QListView or QTree

  1. #1
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    Default QList<Object>into QListView or QTree

    Hello everyone.

    Since I'm a newbie to QT, I would like to hear if someone can guide or help me to explain the issue I have.
    What I need is
    I have a class of user, which I creating an object with such as:
    myuser = new user(id, name, firstname, lastname);

    and I'm appending it into a

    QList<users> *userList;
    userList.append(myuser);


    The question is

    I'm creating few dummy users and I want to show them in QListView.

    Since I'm new to the QT, I read that I need to create a model to show the objects(users) in to the view.
    I couldn't find anywhere some good examples that I can follow.
    So what I have to do to show the users in QListView or QTable/Tree view?

  2. #2
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    Default Re: QList<Object>into QListView or QTree

    You might have an easier start with a QListWidget, QTableWidget or QTreeWidget.
    These allow you to create "items" objects for each entry instead of using a model.
    Model's tend to be a bit more complicated.

    Cheers,
    _

  3. #3
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    Default Re: QList<Object>into QListView or QTree

    thx for replying back.

    I have done the list widget and there no problem with that.
    Its working good but I want to use the QListView aswell (learning porpuse).

  4. #4
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    Default Re: QList<Object>into QListView or QTree

    I see.

    Then your next step is to create a subclass of QAbstractListModel and somehow given that object access to your QList.
    You will have to implement QAbstractItemModel::rowCount() and QAbstractItemModel::data().

    In rowCount() you can ignore the function's argument since you are only implementing a list (argument only needed for trees).

    In data() you only need the row information from the index argument.
    You can also just return a default constructed QVariant for all roles that are not Qt::DisplayRole

    Cheers,
    _

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