<![CDATA[How to signal column span from the model?]]>

<![CDATA[How to signal column span from the model?]]>I want my model to be able to tell the view to span certain columns on certain rows.

QAbstractItemModel::span looked promising, but the documentation states "Note: Currently, span is not used."

I could implement a callback from the view and have the model call it when data should span columns, but that feels clumsy. Or maybe I could fudge something with a Qt::UserRole, but again that feels clumsy.

What is the accepted way to have a model signal spanning to a view?

]]>https://forum.qt.io/topic/140319/how-to-signal-column-span-from-the-modelRSS for NodeThu, 30 Jul 2026 01:01:43 GMTTue, 25 Oct 2022 20:14:03 GMT60