private void Collected(object sender, RoutedEventArgs e)
{
if (!UserManagement.GetInstance().returnMain)
{
return;
}
//查找该项目的位置
var instance = SampleDataService.GetInstance();
int pos = 0;;
int id = MasterMenuItem.OrderId;
for (int i = 0; i < instance.allItems.Count; i++)
{
if (id == instance.allItems[i].OrderId)
{
pos = i;
break;
}
}
//赞＋1并添加到数据库。新建实例以防止Ordered变量被修改
instance.allItems[pos].Collected++;
SampleOrder newOne = instance.allItems[pos];
newOne.Ordered = 0;
SampleOrderSQLManagement.GetInstance().update(newOne);
//防止重复点赞
UserManagement.GetInstance().returnMain = false;
}
public void UpdateTile()
{
TileUpdateManager.CreateTileUpdaterForApplication().Clear();
SampleOrderSQLManagement.GetInstance().GetAll();
ObservableCollection <SampleOrder> all_item = new ObservableCollection <SampleOrder>();
for (int i = 0; i < SampleOrderSQLManagement.GetInstance().allItems.Count; ++i)
{
all_item.Add(SampleOrderSQLManagement.GetInstance().allItems[i]);
}
for (int i = 0; i < all_item.Count; i++)
{
for (int j = i + 1; j < all_item.Count; j++)
{
if (all_item[i].Collected < all_item[j].Collected)
{
SampleOrder tmp = all_item[i];
all_item[i] = all_item[j];
all_item[j] = tmp;
}
}
}
int count = all_item.Count >= 10 ? 10 : all_item.Count;
for (int i = 0; i < count; i++)
{
createTile(all_item[i]);
}
}
//根据字符串查找相符合的菜品
private void GetItemsAccordingToString(String str, ObservableCollection <SampleOrder> collection)
{
SampleOrderSQLManagement.GetInstance().queryItem(str);
for (int i = 0; i < SampleOrderSQLManagement.GetInstance().allItems.Count; ++i)
{
collection.Add(SampleOrderSQLManagement.GetInstance().allItems[i]);
}
}
//根据访问量对ObservableCollection进行排序
private void SortObservableCollectionByVisited()
{
tmpItems.Clear();
SampleOrderSQLManagement.GetInstance().GetAll();
for (int i = 0; i < SampleOrderSQLManagement.GetInstance().allItems.Count; ++i)
{
tmpItems.Add(SampleOrderSQLManagement.GetInstance().allItems[i]);
}
//冒泡排序
for (int i = 0; i < tmpItems.Count; i++)
{
for (int j = i + 1; j < tmpItems.Count; j++)
{
if (tmpItems[i].Visited < tmpItems[j].Visited)
{
SampleOrder tmp = tmpItems[i];
tmpItems[i] = tmpItems[j];
tmpItems[j] = tmp;
}
}
}
}
//根据点赞数量对ObservableCollection进行排序
private void SortObservableCollectionByCollected()
{
mainPageViewItems.Clear();
//从数据库中获得所有菜品数据
SampleOrderSQLManagement.GetInstance().GetAll();
for (int i = 0; i < SampleOrderSQLManagement.GetInstance().allItems.Count; ++i)
{
mainPageViewItems.Add(SampleOrderSQLManagement.GetInstance().allItems[i]);
}
//冒泡排序
for (int i = 0; i < mainPageViewItems.Count; i++)
{
for (int j = i + 1; j < mainPageViewItems.Count; j++)
{
if (mainPageViewItems[i].Collected < mainPageViewItems[j].Collected)
{
SampleOrder tmp = mainPageViewItems[i];
mainPageViewItems[i] = mainPageViewItems[j];
mainPageViewItems[j] = tmp;
}
}
}
}
private async void AddToCart(object sender, RoutedEventArgs e)
{
//去重
int currentID = MasterMenuItem.OrderId;
for (int i = 0; i < UserDataService.GetInstance()._current.SampleItems.Count; ++i)
{
if (UserDataService.GetInstance()._current.SampleItems[i].OrderId == currentID)
{
if (UserDataService.GetInstance()._current.SampleItems[i].Ordered == 99)
{
//数量到达上限
ContentDialog FailedAdd = new ContentDialog()
{
Title = "添加错误",
Content = "菜品\"" + MasterMenuItem.OrderName + "\"已经存在购物车中，数量大于上限99",
PrimaryButtonText = "好"
};
ContentDialogResult response = await FailedAdd.ShowAsync();
}
else
{
//数量加上1
ContentDialog NumAdd = new ContentDialog()
{
Title = "添加到购物车",
Content = "菜品\"" + MasterMenuItem.OrderName + "\"已经存在购物车中，数量加1",
PrimaryButtonText = "好"
};
UserDataService.GetInstance()._current.SampleItems[i].Ordered++;
Calculate();
ContentDialogResult response = await NumAdd.ShowAsync();
}
return;
}
}
//增加访问量
var instance = SampleDataService.GetInstance();
int pos = 0;
int id = MasterMenuItem.OrderId;
for (int i = 0; i < instance.allItems.Count; i++)
{
if (id == instance.allItems[i].OrderId)
{
pos = i;
break;
}
}
//赞＋1并添加到数据库
instance.allItems[pos].Visited++;
SampleOrder newOne = instance.allItems[pos];
newOne.Ordered = 0;
SampleOrderSQLManagement.GetInstance().update(newOne);
//正常添加购物车
MasterMenuItem.Ordered++;
UserDataService.GetInstance()._current.SampleItems.Add(MasterMenuItem);
ContentDialog SuccessAdd = new ContentDialog()
{
Title = "添加到购物车",
Content = "已将\"" + MasterMenuItem.OrderName + "\"添加到购物车",
PrimaryButtonText = "好"
};
Calculate();
ContentDialogResult result = await SuccessAdd.ShowAsync();
}