<![CDATA[Link QAction availability to user selection]]>Hello everyone,

I've created some QActions into QMenus, I'd like to disable them if no selection is done in my main widget.
How can I do it ?

I'm aware of the QAction->setEnabled() method, but how can I link it to the user mouse selection ?

]]>https://forum.qt.io/topic/83862/link-qaction-availability-to-user-selectionRSS for NodeFri, 06 Nov 2026 07:34:49 GMTWed, 04 Oct 2017 07:54:32 GMT60<![CDATA[Reply to Link QAction availability to user selection on Sun, 08 Oct 2017 17:38:38 GMT]]>Because it's a signal of QTableView.

]]>https://forum.qt.io/post/419460https://forum.qt.io/post/419460Sun, 08 Oct 2017 17:38:38 GMT<![CDATA[Reply to Link QAction availability to user selection on Sun, 08 Oct 2017 16:42:46 GMT]]>@SGaist I tried this, but the selectionChanged signal doesn't exist in the QAction class.

    connect(callAct, &QItemSelectionModel::selectionChanged, ipWidget, &IpWidget::onSelectionChanged);
]]>https://forum.qt.io/post/419451https://forum.qt.io/post/419451Sun, 08 Oct 2017 16:42:46 GMT<![CDATA[Reply to Link QAction availability to user selection on Thu, 05 Oct 2017 10:17:12 GMT]]>I try that, thanks for you advice !

]]>https://forum.qt.io/post/418922https://forum.qt.io/post/418922Thu, 05 Oct 2017 10:17:12 GMT<![CDATA[Reply to Link QAction availability to user selection on Thu, 05 Oct 2017 07:53:40 GMT]]>Then add a slot to the class that manages these actions and connect it to the selectionChanged signal of your selection model. In there check whether the selection is empty and update the action state accordingly.

]]>https://forum.qt.io/post/418903https://forum.qt.io/post/418903Thu, 05 Oct 2017 07:53:40 GMT<![CDATA[Reply to Link QAction availability to user selection on Thu, 05 Oct 2017 07:12:55 GMT]]>It's a user left-click selection of a QItemSelectionModel on a QTableView. The user data is stored into a QTableModel.

]]>https://forum.qt.io/post/418896https://forum.qt.io/post/418896Thu, 05 Oct 2017 07:12:55 GMT<![CDATA[Reply to Link QAction availability to user selection on Wed, 04 Oct 2017 21:54:49 GMT]]>Hi,

What kind of selection are you referring to ?

]]>https://forum.qt.io/post/418863https://forum.qt.io/post/418863Wed, 04 Oct 2017 21:54:49 GMT