private void LoadItem(List <string> entries)
{
int i = 0;
while (i < entries.Count)
{
ListItem item = ListItemViewModels.GetInstance().allItems.FirstOrDefault(j => j.GetId() == entries[i]);
if (item == null)
{
byte[] picbytes = Convert.FromBase64String(entries[i + 5]);
BitmapImage img = ByteArrayBitmapExtensions.AsBitmapImage(picbytes);
var dateres = DateTime.Parse(entries[i + 3]);
ListItemViewModels.GetInstance().AddToDoItem(entries[i + 1],
entries[i + 2], img, dateres, null, entries[i]);
ListItem temp = ListItemViewModels.GetInstance().allItems.FirstOrDefault(j => j.GetId() == entries[i]);
temp.completed = (entries[i + 4] == "1" ? true : false);
UpdateTile(entries[i + 1], entries[i + 2], DateTime.Parse(entries[i + 3]));
}
else
{
item.title = entries[i + 1];
item.description = entries[i + 2];
item.date = DateTime.Parse(entries[i + 3]);
item.Image_Source = ByteArrayBitmapExtensions.AsBitmapImage(Convert.FromBase64String(entries[i + 5]));
}
i += 6;
}
}
} //创建item
private async void CreateDialog(int mode)
{
ListItemViewModels myViewModels = ListItemViewModels.GetInstance();
ImageSource source = image.Source;
if (mode == 0)
{
ListItem item = new ListItem(textBox.Text, textBox1.Text, source, datepicker.Date, CurrentPic);
myViewModels.allItems.Add(item);
UpdateTile(textBox.Text, textBox1.Text, datepicker.Date);
byte[] picbyte = await ByteArrayBitmapExtensions.AsByteArray(CurrentPic == null?DefaultPic : CurrentPic);
string res = Convert.ToBase64String(picbyte);
DataAccess.AddData(item.GetId(), item.title, item.description, item.date.ToString("d"), (item.completed ? 1 : 0), res);
CurrentPic = DefaultPic;
}
else if (mode == 1)
{
myViewModels.UpdateTodoItem(id, textBox.Text, textBox1.Text, source, datepicker.Date, CurrentPic);
byte[] picbyte = await ByteArrayBitmapExtensions.AsByteArray(CurrentPic == null?DefaultPic : CurrentPic);
string res = Convert.ToBase64String(picbyte);
DataAccess.UpdateData(id, textBox.Text, textBox1.Text, datepicker.Date.ToString("d"), 0, res);
CurrentPic = DefaultPic;
}
else
{
myViewModels.RemoveTodoItem(id);
DataAccess.DeleteData(id);
}
var dialog = new ContentDialog()
{
Title = "成功",
PrimaryButtonText = "确定",
FullSizeDesired = false,
};
await dialog.ShowAsync();
this.id = null;
button.Content = "Create";
if (mode == 1 || mode == 2)
{
button.Click -= Update;
button.Click += Create;
}
textBox.Text = "";
textBox1.Text = "";
datepicker.Date = DateTime.Now;
image.Source = new BitmapImage(new Uri("ms-appx:///Assets/IMG_0245.JPG"));
DeleteItem.Visibility = Visibility.Collapsed;
list.SelectedItem = null;
mode = 0;
} //管理创建更新删除
private async void CreateDialog(int mode)
{
ListItemViewModels myViewModels = ListItemViewModels.GetInstance();
ImageSource source = image.Source;
if (mode == 0)
{
ListItem item = new ListItem(textBox.Text, textBox1.Text, source, datepicker.Date, CurrentPic);
myViewModels.allItems.Add(item);
MainPage.UpdateTile(textBox.Text, textBox1.Text, datepicker.Date);
byte[] picbyte = await ByteArrayBitmapExtensions.AsByteArray(CurrentPic == null?DefaultPic : CurrentPic);
string res = Convert.ToBase64String(picbyte);
DataAccess.AddData(item.GetId(), item.title, item.description, item.date.ToString("d"), (item.completed ? 1 : 0), res);
CurrentPic = null;
}
else if (mode == 1)
{
byte[] mybytes = await ByteArrayBitmapExtensions.AsByteArray(CurrentPic);
string res = Convert.ToBase64String(mybytes);
DataAccess.UpdateData(id, textBox.Text, textBox1.Text, datepicker.Date.ToString("d"), res);
myViewModels.UpdateTodoItem(id, textBox.Text, textBox1.Text, source, datepicker.Date);
}
else
{
myViewModels.RemoveTodoItem(id);
}
var dialog = new ContentDialog()
{
Title = "成功",
PrimaryButtonText = "确定",
FullSizeDesired = false,
};
ContentDialogResult result = await dialog.ShowAsync();
if (result == ContentDialogResult.Primary)
{
Frame rootFrame = Window.Current.Content as Frame;
rootFrame.GoBack();
}
}
} //挂起操作
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.New)
{
ApplicationData.Current.LocalSettings.Values.Remove("newpage");
}
else
{
if (ApplicationData.Current.LocalSettings.Values.ContainsKey("newpage"))
{
var composite = ApplicationData.Current.LocalSettings.Values["newpage"] as ApplicationDataCompositeValue;
for (int i = 0; i < ListItemViewModels.GetInstance().allItems.Count(); i++)
{
ListItemViewModels.GetInstance().allItems[i].completed = (bool)composite["ischecked" + i];
}
if ((int)composite["mode"] == 1)
{
button.Content = "Update";
button.Click -= Create;
button.Click += Update;
DeleteItem.Visibility = Visibility.Visible;
}
textBox.Text = (string)composite["title"];
textBox1.Text = (string)composite["des"];
id = (string)composite["id"];
datepicker.Date = (DateTimeOffset)composite["date"];
StorageFile pic = await ApplicationData.Current.LocalFolder.GetFileAsync("hangpic");
BitmapImage img = await ByteArrayBitmapExtensions.AsBitmapImage(pic);
image.Source = img;
ApplicationData.Current.LocalSettings.Values.Remove("newpage");
list.SelectedItem = ListItemViewModels.GetInstance().allItems.FirstOrDefault(j => j.GetId() == id);
}
}
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.New)
{
if (e.Parameter != null)
{
mode = 1;
var item = ListItemViewModels.GetInstance().allItems.FirstOrDefault(j => j.GetId() == e.Parameter as String);
id = e.Parameter as String;
List <string> data = DataAccess.GetData();
byte[] thispic = null;
int i = 0;
while (i < data.Count)
{
if (data[i] == id)
{
thispic = Convert.FromBase64String(data[i + 5]);
break;
}
i += 6;
}
StorageFile picfile = await ApplicationData.Current.LocalFolder.CreateFileAsync("tempic", CreationCollisionOption.ReplaceExisting);
await FileIO.WriteBytesAsync(picfile, thispic);
CurrentPic = picfile;
button.Content = "Update";
button.Click -= Create;
button.Click += Update;
textBox.Text = item.title;
textBox1.Text = item.description;
datepicker.Date = item.date;
image.Source = item.Image_Source;
DeleteItem.Visibility = Visibility.Visible;
}
else
{
DeleteItem.Visibility = Visibility.Collapsed;
mode = 0;
}
base.OnNavigatedTo(e);
ApplicationData.Current.LocalSettings.Values.Remove("newpage");
}
else
{
if (ApplicationData.Current.LocalSettings.Values.ContainsKey("newpage"))
{
var composite = ApplicationData.Current.LocalSettings.Values["newpage"] as ApplicationDataCompositeValue;
if ((int)composite["mode"] == 1)
{
mode = 1;
button.Content = "Update";
button.Click -= Create;
button.Click += Update;
DeleteItem.Visibility = Visibility.Visible;
}
else
{
mode = 0;
}
textBox.Text = (string)composite["title"];
textBox1.Text = (string)composite["des"];
datepicker.Date = (DateTimeOffset)composite["date"];
id = (string)composite["id"];
StorageFile pic = await ApplicationData.Current.LocalFolder.GetFileAsync("hangpic");
CurrentPic = pic;
BitmapImage img = await ByteArrayBitmapExtensions.AsBitmapImage(pic);
image.Source = img;
ApplicationData.Current.LocalSettings.Values.Remove("newpage");
}
}
}