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how can i sort depend on various "column" data when i re-implement operator< in QListWidgetItem ?
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when i re-implement operator<, how can i sort depend on various "column" data , not only the DisplayRole data.
why i do this is i want have a QTreeWidget and a QListWidget, which have the Same contents.- i sort the QTreeWidget items by the data on a column.
- when i switch into the QListWidget, i will sort by the same data with the QTreeWidget, sort the QListWidget....so i need more than sort by the DisplayRole
