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如何在 QMap & Qlist 中存储数据并在 QT 中检索它们？

我的要求是我有周一 - 周日的时间表名称和像“周日，12:00 - 17:30”这样的时间表项目............

现在我想要 2 个 QlistWidget 一个包含计划名称，另一个包含计划项目，现在当我在第一个列表框中选择一个计划名称时，相应的相关计划项目会列在另一个列表框中。

如何使用 Qmap 和 Qlist 将项目添加到列表小部件？

如何使用它将数据保存在内存中？

  QList<QString> ScheduleItemslist;
     ScheduleItemslist << "Saturday,09:00- 17:30" << "Sunday,10:00- 12:00" << "Sunday,01:30- 17:30" ;

 QList<QString> ScheduleItemslst;
  ScheduleItemslst << "Monday,09:00- 17:30" << "Tuesday,10:00- 12:00" << "Wednesday,01:30- 17:30" ;


QMap<QString,QList<QString> > map;
map["Weekend Plus"] = ScheduleItemslist ;
map["All"] = ScheduleItemslst ;

foreach (QString key, map.keys())
{
    ui->listWidgetTimeSet->addItem (key) ;
}


ui->listWidgetTime->addItems(ScheduleItemslist);

在 ItemselectionChanged 事件中：

QList<QString> ScheduleItemslist;
     ScheduleItemslist << "Saturday,09:00- 17:30" << "Sunday,10:00- 12:00" << "Sunday,01:30- 17:30" ;

  QList<QString> ScheduleItemslst;
    ScheduleItemslst << "Monday,09:00- 17:30" << "Tuesday,10:00- 12:00" << "Wednesday,01:30- 17:30" ;

if(ui->listWidgetTimeSet->currentItem()->text() == "Weekend Plus")
{
    ui->listWidgetTime->addItems(ScheduleItemslist);
}
else if (ui->listWidgetTimeSet->currentItem()->text() == "All")
{
    ui->listWidgetTime->addItems(ScheduleItemslst);
}
4

1 回答 1

3

你需要这样的东西来存储你的数据。

//Declare your map
QMap <QString, QList <QString> > map;

//Populate your map in a function
void populateMap ()
{

    QList<QString> sundaylist;
    sundaylist<< "Sunday , 12:00 - 17:30" << "Sunday , 18:00 - 20:30";
    map ["Sunday"] = sundaylist;

    QList<QString> mondaylist;
    mondaylist<< "Monday , 12:00 - 17:30" << "Monday , 18:00 - 20:30";
    map ["Monday"] = mondaylist        
}

//Populate list1 with keys in your map
void populateList1 ()
{
    list1.addItems (map.keys ());
}

//This is your slot connected to currentItemChanged  signal of list1
void list1CurrentItemChanged ( QListWidgetItem * current, QListWidgetItem * previous ) 
{
    list2.clear ();
    QString key = current->text ();
    list2.addItems (map [key]);

}
于 2011-06-08T09:42:20.993 回答