linux - QTableWidget 在删除多行时崩溃

Question

我想从 QTableWidget 中删除多行(三列)，这是我的代码:

void on_del_clicked()
{
    QList<QTableWidgetItem *> items = ui->tableWidget->selectedItems();
    for(int i = 0;i<items.length(); i=i+3)
    {
        int row = items[i]->row();
        if(row>=0)
        {
            ui->tableWidget->removeRow(row);
            ui->tableWidget->setCurrentIndex(ui->tableWidget->model()->index(row,0));
        }
    }
}

如果我使用 Ctrl 选择多行，它工作正常，但如果我通过拖动鼠标选择多个条目，它会崩溃。仅当所选项目是 3 的倍数并且通过拖动鼠标选择行时才会崩溃。我使用 Qt 4.8.4，操作系统是 Ubuntu 12.10 64 位

Answer 1

血是对的:

Mayby it's because you choose multiple items in the same row and then when you delete row and try to access next element in that row.

所以请使用此代码:

QList<QTableWidgetItem*> selected_rows = ui->tableWidget->selectedItems();
while( !selected_rows.isEmpty() )
{
    QTableWidgetItem *itm = selected_rows.at(0);
    ui->tableWidget->removeRow(itm->row());
    selected_rows = ui->tableWidget->selectedItems();
}