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    <p><strong>Using a Qt built-in item model</strong></p> <p>If you are using e.g. <code>QFileSystemModel</code> you have to inherit from it and override the <code>data()</code> behaviour:</p> <pre><code>class MyFileSystemModel : public QFileSystemModel { public: QVariant data(const QModelIndex &amp; index, int role = Qt::DisplayRole) const { if (role == Qt::TextAlignmentRole) return Qt::AlignTop; //maybe different result depending on column/row else return QFileSystemModel::data(index, role); } </code></pre> <p>and then use that class instead.</p> <p><strong>Using own item model</strong></p> <p>If you implemented your own item model all you have to do is handle <code>Qt::TextAlignmentRole</code> in <code>data()</code>:</p> <pre><code>QVariant MyTreeModel::data (const QModelIndex &amp;index, int role) const { if (role == Qt::TextAlignmentRole) return Qt::AlignTop; //maybe different result depending on column/row //handle other roles return QVariant(); } </code></pre> <p>The tree view should now automatically align the items to the top.</p> <p>If you want to customize the appearance even further, <a href="http://qt-project.org/doc/qt-4.8/qt.html#ItemDataRole-enum" rel="nofollow">here</a> are the roles that are used by <code>QTreeView</code>. For more customization I think you have to implement your own <code>QTreeView</code> subclass.</p> <p><strong>Using QStandardItemModel</strong></p> <p>If you did not implement your own model but used <code>QStandardItemModel</code> you have to call <code>setTextAlignment(Qt::Alignment alignment)</code> with <code>Qt::AlignTop</code> on your standard items before adding them to the model.</p>
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    1. CONo, he didn't implement his own item model. If he did, you would know how to do such a simple thing.
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    2. COI updated my answer to account for using Qt's builtin models
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    3. COI have to use on QTreeView and let me see i can implement QItemDelegate.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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