从 QTablewidget 中删除所选项目时崩溃 [英] Crash in Deleting selected items from QTablewidget

问题描述

我有一个具有以下设置的 QTablewidget

I have a QTablewidget with the following settings

tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
tableWidget->setSelectionMode(QAbstractItemView::ExtendedSelection);

我正在尝试删除用户选择的行并使用以下代码.However, it results in a crash when all items are selected and deleted.以下方法是否正确?谢谢.

I am trying to delete the user selected rows and use the following code. However, it results in a crash when all items are selected and deleted. Is the following approach correct ? Thanks.

tableWidget->setSortingEnabled(false);
QList<QTableWidgetItem *> selectedEntries = tableWidget->selectedItems();
foreach(QTableWidgetItem * currentItem, selectedEntries) 

{       
if (currentItem->row()!=-1) 
                      tableWidget->removeRow(currentItem->row());   

}
tableWidget->setSortingEnabled(true);

推荐答案

可以在 Nokia 开发论坛，Ruzik 提供的进化形式看起来像..

A slightly different flavor of this operation can be found in the Nokia dev forums, the evolved form provided by Ruzik looks like..

 QSet<int> selectedRows; //we use a set to prevent doubles
 QList<QTableWidgetItem*> itemList = tableWidget->selectedItems();
 QTableWidgetItem * item;
 foreach(item, itemList)
 selectedRows.insert(item->row());
 //get a list, and sort it big to small
 QList<int> rows = selectedRows.toList();
 qSort(rows.begin(), rows.end());
 //now actually do the removing:
 foreach(int row, rows)
  tableWidget->removeRow(row);

这篇关于从 QTablewidget 中删除所选项目时崩溃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！