public async void OnAdd(object sender, EventArgs e)
{
var todo = new TodoItem { Name = newItemName.Text };
await AddItem(todo);
newItemName.Text = "";
newItemName.Unfocus();
}
public TodoItemImageViewModel(MobileServiceFile file, TodoItem todoItem, Action<TodoItemImageViewModel> deleteHandler)
{
this.deleteHandler = deleteHandler;
this.uri = FileHelper.GetLocalFilePath(todoItem.Id, file.Name);
this.name = file.Name;
this.File = file;
InitializeCommands();
}
public static async Task<TodoItemImageViewModel> CreateAsync(MobileServiceFile file, TodoItem todoItem, Action<TodoItemImageViewModel> deleteHandler)
{
var result = new TodoItemImageViewModel();
result.deleteHandler = deleteHandler;
result.name = file.Name;
result.File = file;
result.uri = await FileHelper.GetLocalFilePathAsync(todoItem.Id, file.Name);
result.InitializeCommands();
return result;
}
public TodoItemViewModel(TodoItem todoItem, TodoItemManager itemManager)
{
if (todoItem == null)
{
throw new ArgumentNullException("todoItem");
}
if (itemManager == null)
{
throw new ArgumentNullException("itemManager");
}
this.todoItem = todoItem;
this.itemManager = itemManager;
InitializeImages(todoItem);
InitializeCommands();
}
public static async Task<TodoItemViewModel> CreateAsync(TodoItem todoItem, TodoItemManager itemManager)
{
if (todoItem == null) {
throw new ArgumentNullException("todoItem");
}
if (itemManager == null) {
throw new ArgumentNullException("itemManager");
}
TodoItemViewModel result = new TodoItemViewModel();
result.todoItem = todoItem;
result.itemManager = itemManager;
await result.LoadImagesAsync();
result.InitializeCommands();
return result;
}
public static async Task<TodoItemImageViewModel> CreateAsync(MobileServiceFile file, TodoItem todoItem, Action<TodoItemImageViewModel> deleteHandler)
{
var result = new TodoItemImageViewModel();
result.deleteHandler = deleteHandler;
result.name = file.Name;
result.File = file;
var uri = await FileHelper.GetLocalFilePathAsync(todoItem.Id, file.Name);
// hack until I figure out how to do this cross-platform
if (Device.OS == TargetPlatform.Windows) {
result.uri = new Uri(uri).AbsoluteUri;
}
else {
result.uri = uri;
}
result.InitializeCommands();
return result;
}
private async void InitializeImages(TodoItem todoItem)
{
IEnumerable<MobileServiceFile> files = await this.itemManager.GetImageFiles(todoItem);
this.Images = new ObservableCollection<TodoItemImageViewModel>(files.Select(f => new TodoItemImageViewModel(f, this.todoItem, DeleteImage)));
}
internal async Task<IEnumerable<MobileServiceFile>> GetImageFiles(TodoItem todoItem)
{
// FILES: Get files (local)
return await this.todoTable.GetFilesAsync(todoItem);
}
internal async Task DeleteImage(TodoItem todoItem, MobileServiceFile file)
{
// FILES: Deleting file
await this.todoTable.DeleteFileAsync(file);
// "Touch" the record to mark it as updated
await this.todoTable.UpdateAsync(todoItem);
}
internal async Task<MobileServiceFile> AddImage(TodoItem todoItem, string imagePath)
{
string targetPath = FileHelper.CopyTodoItemFile(todoItem.Id, imagePath);
// FILES: Creating/Adding file
MobileServiceFile file = await this.todoTable.AddFileAsync(todoItem, Path.GetFileName(targetPath));
// "Touch" the record to mark it as updated
await this.todoTable.UpdateAsync(todoItem);
return file;
}
public async Task DeleteTaskAsync(TodoItem item)
{
try
{
//TodoViewModel.TodoItems.Remove(item);
await todoTable.DeleteAsync(item);
}
catch (MobileServiceInvalidOperationException msioe)
{
Debug.WriteLine(@"INVALID {0}", msioe.Message);
}
catch (Exception e)
{
Debug.WriteLine(@"ERROR {0}", e.Message);
}
}
public async Task SaveTaskAsync(TodoItem item)
{
if (item.Id == null)
{
await todoTable.InsertAsync(item);
//TodoViewModel.TodoItems.Add(item);
}
else
await todoTable.UpdateAsync(item);
}
public async Task SaveTaskAsync(TodoItem item)
{
if (item.Id == null) {
await todoTable.InsertAsync(item);
}
else {
await todoTable.UpdateAsync(item);
}
}
async Task DeleteItem(TodoItem item)
{
await manager.DeleteTaskAsync(item);
await LoadItems();
}
// Data methods
private async Task AddItem(TodoItem item)
{
await manager.SaveTaskAsync(item);
await LoadItems();
}