protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.New)
{
ApplicationData.Current.LocalSettings.Values.Remove("NavigationPage");
}
else
{
if (ApplicationData.Current.LocalSettings.Values.ContainsKey("NavigationPage"))
{
// Read data
var composite = ApplicationData.Current.LocalSettings.Values["NavigationPage"] as ApplicationDataCompositeValue;
myTitle.Text = (string)composite["myTitle"];
myDetail.Text = (string)composite["myDetail"];
myDate.Date = (DateTimeOffset)composite["myDate"];
RightPad.Visibility = ((bool)composite["RightPad"]) ? Visibility.Visible : Visibility.Collapsed;
readAndLoad(fileToken = (string)composite["myImg"]);
isCreating = (bool)composite["isCreating"];
if ((int)composite["Selected"] >= 0)
{
memo = ViewModel.Memos.ElementAt((int)composite["Selected"]);
bytes = memo.Bytes;
}
DeletePage.Visibility = isCreating ? Visibility.Collapsed : Visibility.Visible;
// Clean data
ApplicationData.Current.LocalSettings.Values.Remove("NavigationPage");
}
}
base.OnNavigatedTo(e);
}
public void Loadmemos(string token = "")
{
App.ViewModel.Memos.Clear();
string sql = "SELECT * FROM StorageMemo";
if (token != "")
{
sql += " WHERE Detail LIKE '%" + token;
sql += "%' OR Title LIKE '%" + token;
sql += "%' OR Time LIKE '%" + token + "%'";
}
var memos = db.Query <StorageMemo>(sql);
foreach (var memo in memos)
{
BitmapImage bitmap = (memo.Image == null) ? new BitmapImage(new Uri("ms-appx:///Assets/Square150x150Logo.scale-200.png")) : BytesToBitmapImage(memo.Image);
Memorandum toAdd = new Memorandum(memo.Id)
{
MemoDate = DateTime.ParseExact(memo.Time, pattern, null, System.Globalization.DateTimeStyles.None),
MemoDetail = memo.Detail,
MemoTitle = memo.Title,
Bytes = memo.Image,
MemoImg = bitmap,
IsDone = memo.state
};
App.ViewModel.Memos.Add(toAdd);
}
}
private void DeletePage_Click(object sender, RoutedEventArgs e)
{
App.databaseManager.DeleteMemo(memo.Id);
memo = null;
fileToken = null;
bytes = null;
ViewModel.Memos.RemoveAt(MainPage.PresentItem);
PageList.SelectedIndex = -1;
(new Windows.UI.Popups.MessageDialog("删除成功", "提示信息")).ShowAsync();
RightPad.Visibility = Visibility.Collapsed;
App.tileController.Update();
}
public void InsertMemo(Memorandum toAdd)
{
db.Insert(new StorageMemo()
{
Id = toAdd.Id,
Detail = toAdd.MemoDetail,
Title = toAdd.MemoTitle,
Time = toAdd.MemoDate.ToString(pattern),
Image = toAdd.Bytes,
state = toAdd.IsDone
});
}
private void PageList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
MainPage.PresentItem = PageList.SelectedIndex;
if (MainPage.PresentItem == -1)
{
return;
}
memo = ViewModel.Memos.ElementAt(MainPage.PresentItem);
if (Window.Current.Bounds.Width > 880)
{
RightPad.Visibility = Visibility.Visible;
if (!isCreating)
{
myTitle.Text = memo.MemoTitle;
myDetail.Text = memo.MemoDetail;
myDate.Date = memo.MemoDate.Date;
myImg.Source = memo.MemoImg;
bytes = memo.Bytes;
fileToken = null;
}
else
{
isCreating = false;
DeletePage.Visibility = Visibility.Visible;
}
}
else
{
if (!isCreating)
{
NewPage.Current.myTitle.Text = memo.MemoTitle;
NewPage.Current.myDetail.Text = memo.MemoDetail;
NewPage.Current.myDate.Date = memo.MemoDate.Date;
NewPage.Current.myImg.Source = memo.MemoImg;
}
else
{
isCreating = false;
NewPage.Current.DeletePage.Visibility = Visibility.Visible;
}
}
}