[Qt-interest] QTreeView custom sorted columns

[Robert Reif]

Robert Reif wrote:
> I'm new to QT and am trying to modify an existing application (cppcheck 
> gui) to sort the QTreeView column containing line numbers (2) properly.
>
> I'm doing this using a QSortFilterProxyModel with an overridden 
> lessThan.  The sorting woks but I get the following error repeated many 
> times when running it:
>
> QSortFilterProxyModel: index from wrong model passed to mapToSource
>   
Here is a link to the cppcheck ticket with more info:

https://sourceforge.net/apps/trac/cppcheck/ticket/1006