Hi, I'm subclassing QAbstractTableModel class, called class Addressbookmodel and I'm populating the model. On QWidget , I'm creating QVBoxLayout and setting it as the main layout for the view and adding QTreeView,QTableView,QListView objects to it. file path and accessing are working fine. But problem is, QTreeView, QTableview created on a stack is not getting displayed on the widget(at least it should show the layout of the widget, right?, why object created on the heap are shown because I have created QListView on heap memory, it is shown on the widget with empty data from the model why the model data is not showing? code: widget.cpp Widget::Widget(QWidget *parent) : QWidget(parent) { QFile file("path"); if(!file.open(QIODevice::ReadOnly|QIODevice::Text)) { qDebug()<<"can't access the file"; } QString addresses=QString::fromUtf8(file.readAll()); Addressbookmodel model(addresses); QListView *listView=new QListView(); listView->setModel(&model); listView->setModelColumn(0); listView->show(); QTreeView treeView; treeView.setModel(&model); treeView.show(); QTableView tableView; tableView.setModel(&model); tableView.show(); setMiniumSize(800,400); QVBoxLayout *Vlayout=new QVBoxLayout(this); Vlayout->addWidget(listView); Vlayout->addWidget(&treeView); Vlayout->addWidget(&tableView); } csv file: 'Name', 'Address' 'thippu', 'talacaverlayout'

@thippu said in Data not displaying on the QTreeView, QTableView,QListView classes : QTreeView, QTableview created on a stack is not getting displayed Because they go out of scope and get deleted before they can get displayed. The same is true for your model

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Data not displaying on the QTreeView, QTableView,QListView classes

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V VRonin

@thippu said in Data not displaying on the QTreeView, QTableView,QListView classes:

Can share me an example that helps me to understand how to create QTreeView model and subclass it?

http://doc.qt.io/qt-5/qtwidgets-itemviews-simpletreemodel-example.html
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thippu

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@VRonin , Thank you.
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