something abourt the QDirModel

[xiongxiongchuan]

i used below code to create a widget inheriting form QTreeView,and used the QDIrModel to show the dir
but i did't want to have some folders to have the function to back the parent folder,

projectModel=new QDirModel; 
	projectModel->setFilter(QDir::Files|QDir::Dirs);
	projectModel->setResolveSymlinks(true);
	this->setModel(projectModel);
	this->setRootIndex(projectModel->index(projectAddressString,0));

projectModel=new QDirModel; 
	projectModel->setFilter(QDir::Files|QDir::Dirs);
	projectModel->setResolveSymlinks(true);
	this->setModel(projectModel);
	this->setRootIndex(projectModel->index(projectAddressString,0));

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and it looks like this

dd..png