CODEWITHSUNDEEP
pythonpyqt
alphanumeric
alphanumeric

Reputation: 19329

How to setModel for QListWidget

Is there any way to setModel for QListWidget? I am getting AttributeError: QListWidget.setModel is a private method on this:

class Model(QtCore.QAbstractListModel):
    def __init__(self):
        QtCore.QAbstractListModel.__init__(self)
        self.items=[]
    def rowCount(self, parent=QtCore.QModelIndex()):
        return len(self.items)
    def flags(self,index):
        return QtCore.Qt.ItemIsEditable

view=QtGui.QListWidget()

viewModel=Model()
view.setModel(viewModel)

Upvotes: 6

Views: 10218

Answers (2)

Edouard Berthe
Edouard Berthe

Reputation: 1463

I simply would like to complete @Achayan's answer: if you have a look at Qt's documentation, you can find a very good tutorial explaining precisely the difference between

  • implementation via standard widgets
  • implementation via Model/View

In the first case, the standard widgets own a version of the data, which can seem easier to do and manage at first glance, but can lead to problem of synchronization. Indeed, if the widget itself (which is a view) owns its own version of the data, you have to be sure that this data is synchronized with the database. And what's more, if you have, let's say 2 or 3 others widgets of the same model (example: a table, a list and a combobox representing the same entity), therefore you have four versions of the data...

The second one is better if you want a more decoupled and flexible implementation: the model is really "simply" a view, and does not own any data. He simply interacts with the model, which therefore has to implement a given interface (QAbstractItemModel).

In your case: QListWidget is the "standard widget", and QListView is the view of the Model/View implementation.

Upvotes: 4

Achayan
Achayan

Reputation: 5885

I don't think so you can set model for QListWidget. Because QListWidget has its own model. But you can use QListView and you can set your own model to QListView

Upvotes: 10

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