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I have a QFileSystemModel which is use as a model in QTreeView . This work fine now I have names of some directories. Which I want to hide in QTreeview. 

QString strCompleteDirectoryPath = "/Volumes/";
QTreeView *SourceTreeView = new QTreeView;
QSize ItemSize(20,20);
QFileSystemModel *model = new QFileSystemModel();
model->setNameFilterDisables(false);
model->setRootPath(strCompleteDirectoryPath);
model->setFilter(QDir::AllDirs | QDir::NoDotAndDotDot | QDir::Hidden);
model->setNameFilters(QStringList("samplefolder"));
SourceTreeView->setModel(model);
SourceTreeView->setRootIndex(model->index(strCompleteDirectoryPath));
SourceTreeView->header()->resizeSection(0,350);
SourceTreeView->setIconSize(ItemSize);

I want to hide "samplefolder" in "/Volumes" directory. I use both strings "samplefolder" and "/Volumes/samplefolder" in setNameFilters() one by one to check my filter. But it does not work for me.

So kindly tell me how could I hide this because I dont want to show it in my QTreeView.

Evgeny
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Rohit Chauhan
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1 Answers1

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You should use QSortFilterProxyModel for this. Example:

QString strCompleteDirectoryPath = "/Volumes/";

QTreeView *SourceTreeView = new QTreeView;

QFileSystemModel *model = new QFileSystemModel(SourceTreeView);
model->setRootPath(strCompleteDirectoryPath);
model->setFilter(QDir::AllDirs | QDir::NoDotAndDotDot | QDir::Hidden);

QSortFilterProxyModel* filter = new QSortFilterProxyModel(model);
filter->setFilterRegExp(QRegExp("^((?!samplefolder).)*$", Qt::CaseInsensitive));

SourceTreeView->setModel(filter);
Evgeny
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  • Not working for me. When I set SourceTreeView->setModel(filter); . SourceTreeView goes blank. It does not display any item. – Rohit Chauhan May 02 '16 at 04:36