C++ 从 listWidget 中删除所选项目
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/25417348/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Remove selected items from listWidget
提问by Lion King
How to remove selected items from qlistWidget.
如何从qlistWidget.
I have tried write the following code, but does not work.
我曾尝试编写以下代码，但不起作用。
QList<QListWidgetItem*> items = ui->listWidget->selectedItems();
foreach(QListWidgetItem item, items){
ui->listWidget->removeItemWidget(item);
}
Now, how to remove the items that I selected from the qlistWidget?
现在，如何删除我从qlistWidget?
回答by Nejat
One way to remove item from QListWidgetis to use QListWidget::takeItemwhich removes and returns the item :
删除项目的一种方法QListWidget是使用QListWidget::takeItemwhich 删除并返回项目：
QList<QListWidgetItem*> items = ui->listWidget->selectedItems();
foreach(QListWidgetItem * item, items)
{
delete ui->listWidget->takeItem(ui->listWidget->row(item));
}
Another way is to qDeleteAll:
另一种方法是qDeleteAll：
qDeleteAll(ui->listWidget->selectedItems());
回答by glihm
To give a solution with removeItemWidget:
给出一个解决方案removeItemWidget：
QList<QListWidgetItem*> items = ui->listWidget->selectedItems();
foreach(QListWidgetItem* item, items){
ui->listWidget->removeItemWidget(item);
delete item; // Qt documentation warnings you to destroy item to effectively remove it from QListWidget.
}
