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    <p>It turns out that there's a very simple reason that the <code>count</code> property of the <code>cppModel</code> isn't available - it's because neither <code>QAbstractListModel</code> nor <code>QList&lt;&gt;</code> have a <code>count</code> property!</p> <p>I had assumed that the fact that a <code>ListModel</code> could be substituted with a C++-based object like a QList&lt;> meant that they were polymorphic and that a ListView or PathView would use a <code>count</code> property to correctly handle them. </p> <p>First, neither <code>QAbstractListModel</code> nor <code>QList&lt;&gt;</code> are polymorphic with a <code>ListModel</code>. It turns out that they're all just special-cased - a <code>ListView</code> knows whether it has a <code>ListModel</code> or a <code>QList&lt;&gt;</code> or a <code>QAbstractListModel</code> and has separate code paths for using each. The <code>ListView</code> doesn't need the nonexistent <code>count</code> property to manage a <code>QList&lt;&gt;</code> or a <code>QAbstractListModel</code>. In fact, it isn't clear to me that <code>ListView</code> and <code>PathView</code> even use <code>ListModel</code>'s <code>count</code> property. The <code>count</code> property seems to be mostly for the QML programmer's benefit. In my example, I was using the <code>count</code> property to build a <code>Path</code> object in the <code>PathView</code>. My example works perfectly if I use a <code>length</code> property instead because <code>QList&lt;&gt;</code> DOES have a <code>length</code> property.</p> <p>Thanks to blam and torgeirl on #qt-qml for helping me with this (neither wanted to collect the stackoverflow points by posting this answer, so I'm posting it for the benefit of the community).</p>
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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.

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