How to sorting date with QString type in QTableWidget?

[vinh]

Default item in QTableWidget is QString, when I read date with format dd/MM/yyyy (13/12/2020), sort date column same only sort with first character.
This is date column new load:

This is table date column after sort:

sorting is incorrect!
How to sort date by QString type?
*format I use dd/MM/yyyy

[Chris Kawa]

If you can just store the date as date, not string and it will sort correctly, so instead of

QTableWidgetItem* item = new QTableWidgetItem("12/11/2020");

do

QTableWidgetItem* item = new QTableWidgetItem();
item->setData(Qt::DisplayRole, QDate(2020,11,12));

If you really want strings you can switch to QTableView and implement custom sorting with QSortFilterProxyModel.

[vinh]

@Chris-Kawa thank you so much!