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  1. PO
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    <p>I guess the easies way would be to iterate though model items and save save to file via <a href="http://doc.qt.nokia.com/latest/qdatastream.html" rel="nofollow">QDataStream</a>. QDataStream supports reading\writing QVariant's and you can get\set the model item's data as <a href="http://doc.qt.nokia.com/4.7-snapshot/qvariant.html" rel="nofollow">QVariant</a>. Below is a small example, I'm using <a href="http://doc.qt.nokia.com/4.7.1/qstandarditemmodel.html" rel="nofollow">QStandardItemModel</a> for simplicity:</p> <pre><code>import sys from PyQt4 import QtGui, QtCore class MainForm(QtGui.QMainWindow): def __init__(self, parent=None): super(MainForm, self).__init__(parent) self.setMinimumSize(400, 400) # create model self.model = QtGui.QStandardItemModel() for k in range(0, 4): parentItem = self.model.invisibleRootItem() for i in range(0, 4): item = QtGui.QStandardItem(QtCore.QString("item %0 %1").arg(k).arg(i)) parentItem.appendRow(item) parentItem = item # create treeview self.view = QtGui.QTreeView(self) self.view.setModel(self.model) self.view.setMinimumSize(300, 400) self.saveButton = QtGui.QPushButton("save", self) self.saveButton.move(300, 1) self.saveButton.clicked.connect(self.on_save_button_clicked) self.layout = QtGui.QVBoxLayout(self.centralWidget()) self.layout.addWidget(self.view) self.layout.addWidget(self.saveButton) def on_save_button_clicked(self): # create text file file = QtCore.QFile("save.txt") file.open(QtCore.QIODevice.WriteOnly) # open data stream out = QtCore.QDataStream(file) # recursively write model item into the datastream self.save_item(self.model.invisibleRootItem(), out) def save_item(self, item, out): for i in range(0, item.rowCount()): child = item.child(i) child.write(out) self.save_item(child, out) def main(): app = QtGui.QApplication(sys.argv) form = MainForm() form.show() app.exec_() if __name__ == '__main__': main() </code></pre> <p>hope this helps, regards</p>
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    1. POHow to save new data in tree model view
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    1. USserge_gubenko
    1. USserge_gubenko
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    1. COIt is a good idea to iterate along the model but, I don't know why, it complains that it doesn't have the method invisibleRootItem().
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      1. PO
      1. USSangi
    2. COinvisibleRootItem() is a method of the QStandardItemModel; in your case you should use QAbstractItemModel methods such as index() and data() to iterate through model items
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      1. USserge_gubenko
    3. COI'm sorry but it is not completely clear this Item Model View. I would like to iterate along all indexes but I don't know on which "object" I have to iterate. How can I increment the current index to go the next index?
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      1. USSangi
 

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