QT window and control-qtreeview/qtableview sorting problem

Qtreeview/qtableview Self-sorting function

Qt can sort qtreeview/qtableview a column by Sortbycolumn ()

can also be implemented by setsortingenabled () allows the user to click on the table header to sort

Sort by default is to sort the contents of item

If you use

New Qstandarditem ("XXXX");

Or

New Qstandarditem (); Mitem. SetText ("XXXX");

Because of its function parameter characteristics, it causes QT to assume that the passed value is the qstring type, even if "XXXX" is written with a number as well as a string.

But it can be done by

Mitem.setdata (12313.223, qt::editrole);

The implementation of the number of the default parameter type is qvariant, so the incoming view can be qvariant to identify the content as a number, after sorting to achieve numerical content sorting

QT window and control-qtreeview/qtableview sorting problem