QTreeView 数据过滤，使用代理model

Qter

自定义实现代理QSortFilterProxyModel注意在相关函数调用中进行mapToSource的index转换

        bool MySortFilterProxyModel::setExtDataExpanded(const QModelIndex& index, bool value)
        {
        QModelIndex sourceIndex = QSortFilterProxyModel::mapToSource(index);
        //qDebug() << "MySortFilterProxyModel::setExtDataExpanded" << index << value << sourceIndex;
        return (dynamic_cast<TreeModel*>(sourceModel()))->setExtDataExpanded(sourceIndex, value);
        }

Qter

https://blog.csdn.net/dpsying/article/details/80383752

https://blog.csdn.net/dpsying/article/details/80384094