private void ExecuteUpdateItemCommand(ViewModels.TodoItemViewModel item)
{
try
{
TodoItemRepository.GetForToDoListId(TodoList.Id).UpdateItem(item.TodoItem.Id, item.TodoItem);
}
catch { }
}
private void ExecuteAddCommand(string title)
{
try
{
var index = this.Items.IndexOf(this.SelectedItem);
var item = new ViewModels.TodoItemViewModel(_todoItemRepository.Factory(title: title));
this.TodoList.Items.Insert((index > -1) ? index : 0, item.TodoItem);
this.Items.Insert((index > -1) ? index : 0, item);
this.SelectedItem = item;
}
catch { this.SelectedItem = null; }
}
private void ExecuteAddCommand(string title)
{
try
{
var index = this.Items.IndexOf(this.SelectedItem);
var item = new ViewModels.TodoItemViewModel(_todoItemRepository.Factory(title: title));
this.TodoList.Items.Insert((index > -1) ? index : 0, item.TodoItem);
this.Items.Insert((index > -1) ? index : 0, item);
this.SelectedItem = item;
}
catch { this.SelectedItem = null; }
}
private async void ExecuteAddItemCommand(string title)
{
try
{
var item = _todoItemRepository.Factory(title: title);
await _todoItemRepository.InsertTodoItem(item);
var itemVM = new ViewModels.TodoItemViewModel(item);
var index = this.ItemVMs.IndexOf(this.SelectedItem);
this.ItemVMs.Insert((index > -1) ? index : 0, itemVM);
this.SelectedItem = itemVM;
}
catch { this.SelectedItem = null; }
}
//单例模式
public static TodoItemViewModel GetInstance()
{
/* if (viewmodel == null)
* {
* //创建两个例子
* viewmodel = new TodoItemViewModel();
* BitmapImage bitmapImage_1 = new BitmapImage();
* bitmapImage_1.UriSource = new Uri("ms-appx:///Assets/background.jpg");
* viewmodel.allItem.Add(new Models.TodoItem(bitmapImage_1, "Todolist_1", "Hello world !", DateTime.Today));
* var db = new SQLiteConnection("demo.db");
* string sql = @"INSERT INTO Todoitem(Image,Title,Description,Date) VALUES (?,?,?,?);";
* using (var todoitem = db.Prepare(sql))
* {
* todoitem.Bind(1, bitmapImage_1.ToString());
* todoitem.Bind(2, "Todolist_1");
* todoitem.Bind(3, "Hello world !");
* todoitem.Bind(4, DateTime.Today.ToString());
* todoitem.Step();
* }
*
* }*/
// else
// {
using (var db = new SQLiteConnection("demo.db"))
{
viewmodel = new TodoItemViewModel();
string sql = @"SELECT Image,Title,Description,Date FROM Todoitem;";
using (var statement = db.Prepare(sql))
{
while (SQLiteResult.ROW == statement.Step())
{
BitmapImage bitmapImage_1 = new BitmapImage();
if ((string)statement[0] == null)
{
bitmapImage_1.UriSource = new Uri("ms-appx:///Assets/bar.jpg");
}
else
{
bitmapImage_1.UriSource = new Uri((string)statement[0]);
}
viewmodel.allItem.Add(new Models.TodoItem(bitmapImage_1, (string)statement[1], (string)statement[2], (DateTimeOffset.Parse((string)statement[3]))));
}
}
}
// }
return(viewmodel);
}
private async void ExecuteAddItemFromImageCommand(StorageFile file)
{
Busy = true;
try
{
var item = _todoItemRepository.Factory(title: "New Item From Image");
await _todoItemRepository.InsertTodoItem(item);
var itemVM = new ViewModels.TodoItemViewModel(item);
var index = this.ItemVMs.IndexOf(this.SelectedItem);
this.ItemVMs.Insert((index > -1) ? index : 0, itemVM);
itemVM.SavePictureCommand.Execute(file);
this.SelectedItem = itemVM;
}
catch { this.SelectedItem = null; }
Busy = false;
}
public async Task <Dictionary <int, TodoItemViewModel> > LoadAsync(uint start, int size)
{
// constrain to count
size = (int)start + size;
if (size > Count)
{
size = Count;
}
var dictionary = new Dictionary <int, TodoItemViewModel>();
foreach (var index in Enumerable.Range((int)start, size))
{
// fake delay for demo
await Task.Delay(10);
// fake data for demo
var model = _repository.Sample(1).First();
var viewmodel = new ViewModels.TodoItemViewModel(model);
dictionary.Add(index, viewmodel);
}
return(dictionary);
}
private bool CanExecuteUpdateItemCommand(ViewModels.TodoItemViewModel item)
{
return(true);
}
private async void ExecuteAddItemCommand(string title)
{
try
{
var item = _todoItemRepository.Factory(title: title);
await _todoItemRepository.InsertTodoItem(item);
var itemVM = new ViewModels.TodoItemViewModel(item);
var index = this.ItemVMs.IndexOf(this.SelectedItem);
this.ItemVMs.Insert((index > -1) ? index : 0, itemVM);
this.SelectedItem = itemVM;
}
catch { this.SelectedItem = null; }
}
private async void ExecuteAddItemFromImageCommand(StorageFile file)
{
Busy = true;
try
{
var item = _todoItemRepository.Factory(title: "New Item From Image");
await _todoItemRepository.InsertTodoItem(item);
var itemVM = new ViewModels.TodoItemViewModel(item);
var index = this.ItemVMs.IndexOf(this.SelectedItem);
this.ItemVMs.Insert((index > -1) ? index : 0, itemVM);
itemVM.SavePictureCommand.Execute(file);
this.SelectedItem = itemVM;
}
catch { this.SelectedItem = null; }
Busy = false;
}
