QTreeView with QFileSystemModel: How can I remove all columns except "Name"?

Question

while I'm working on something in Qt5 that closely resembles a file manager, I try to implement a very basic tree view, showing only the directory names without any other information. However, (it seems that) QTreeView doesn't let me decide which columns I want to show.

Here's what I have:

// ...
QString m_path = "C:/Users/mine";

dirModel = new QFileSystemModel(this);
dirModel->setFilter(QDir::NoDotAndDotDot | QDir::AllDirs);
dirModel->setRootPath(m_path);

ui->treeView->setModel(dirModel);
// ...

Now my QTreeView shows more information with the name, like the size et al.; however, this is not the desired behavior.

Setting headerVisible to false removes the "headline" of my QTreeView which is OK, but how can I remove the other columns completely? I tried:

ui->treeView->hideColumn(1);

just to test if that works, but it did not change a thing.

`hideColumn` does what you are trying to do. Are you sure you called it *after* the model was initialized? http://doc.qt.io/qt-5/qtreeview.html#hideColumn — Nicolas Holthaus, Sep 24 '15 at 13:52

score 5 · Accepted Answer · edited May 23 '17 at 11:46

5

QTreeView* treeView = new QTreeView(centralWidget());
QFileSystemModel* fsModel = new QFileSystemModel(treeView);
fsModel->setFilter(QDir::NoDotAndDotDot | QDir::AllDirs);
fsModel->setRootPath("/home/user");
treeView->setModel(fsModel);
// first column is the name
for (int i = 1; i < fsModel->columnCount(); ++i)
    treeView->hideColumn(i);

QHBoxLayout* hLayout = new QHBoxLayout(centralWidget());
hLayout->addWidget(treeView);

Another approach here (PyQt but the logic is still the same): PyQt: removing unnecessary columns

edited May 23 '17 at 11:46

Community

1
1

answered Sep 24 '15 at 15:15

ramtheconqueror

1,907
1
22
35

hides all the columns except the first (name) column. – ramtheconqueror Sep 24 '15 at 15:16

score 2 · Answer 2 · answered Sep 24 '15 at 14:43

2

There's nothing wrong with your approach. It works as below:

mainwindow header:

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
    QFileSystemModel * dirModel;
};

mainwindow source:

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    QString m_path = "E:";

    dirModel = new QFileSystemModel(this);
    dirModel->setFilter(QDir::NoDotAndDotDot | QDir::AllDirs);
    dirModel->setRootPath(m_path);

    ui->treeView->setModel(dirModel);

    ui->treeView->hideColumn(1);
}

answered Sep 24 '15 at 14:43

user23573

2,479
1
17
36

It does not hide any columns though ... :-/ – r4ndom n00b Sep 24 '15 at 14:55
Can you post a major section of your code, because the above code hides the "Size" column on my computer. – user23573 Sep 24 '15 at 14:56
Hmm, are the columns identical for all Windows versions? – r4ndom n00b Sep 24 '15 at 15:09
Probably not, you should check the text – user23573 Sep 24 '15 at 15:14
Then it might be even more difficult to find the correct columns to remove, right? :( – r4ndom n00b Sep 24 '15 at 15:35
Solved for me. hideColumn after setModel work fine! Thanks! – Šerg Mar 22 '17 at 11:11

QTreeView with QFileSystemModel: How can I remove all columns except "Name"?

2 Answers2