QSortFilterProxyModel not filtering properly

[freemind]

Hi,

When i try to filter items with a QSortFilterProxyModel it doesn't work properly.I've been trying to solve this problem, but i can't figure out what i am missing.

proxyModel = new QSortFilterProxyModel(this);
    proxyModel->setDynamicSortFilter(true);
    proxyModel->setSourceModel(&m_filesystem);
    m_ui.v_files->setModel(proxyModel); //QListView

proxyModel = new QSortFilterProxyModel(this);
    proxyModel->setDynamicSortFilter(true);
    proxyModel->setSourceModel(&m_filesystem);
    m_ui.v_files->setModel(proxyModel); //QListView

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and then just doing this should work, i guess:

proxyModel->setFilterFixedString(m_toolbarSearch->text());

proxyModel->setFilterFixedString(m_toolbarSearch->text());

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But it doesn't, it seems it's just filtering the first element.
Any ideas?

Thanks