public async void AddItem(View view)
{
if (client == null || string.IsNullOrWhiteSpace(textNewToDo.Text))
{
return;
}
// Create a new item
var item = new ToDoItemDocDb {
Text = textNewToDo.Text,
Complete = false
};
try {
// Insert the new item into the local store.
await todoTable.InsertAsync(item);
// Send changes to the mobile app backend.
await SyncAsync();
if (!item.Complete)
{
adapter.Add(item);
}
}
catch (Exception e) {
CreateAndShowDialog(e, "Error");
}
textNewToDo.Text = "";
}
public async Task CheckItem(ToDoItemDocDb item)
{
if (client == null)
{
return;
}
// Set the item as completed and update it in the table
item.Complete = true;
try {
// Update the new item in the local store.
await todoTable.UpdateAsync(item);
// Send changes to the mobile app backend.
await SyncAsync();
if (item.Complete)
{
adapter.Remove(item);
}
}
catch (Exception e) {
CreateAndShowDialog(e, "Error");
}
}
private async void CheckBoxComplete_Checked(object sender, RoutedEventArgs e)
{
CheckBox cb = (CheckBox)sender;
ToDoItemDocDb item = cb.DataContext as ToDoItemDocDb;
await UpdateCheckedTodoItem(item);
}
private async void ButtonSave_Click(object sender, RoutedEventArgs e)
{
var todoItem = new ToDoItemDocDb {
Text = TextInput.Text
};
TextInput.Text = "";
await InsertTodoItem(todoItem);
}
public async Task CompleteItemAsync(ToDoItemDocDb item)
{
try {
item.Complete = true;
await todoTable.UpdateAsync(item); // Update todo item in the local database
await SyncAsync(); // Send changes to the mobile app backend.
Items.Remove(item);
} catch (MobileServiceInvalidOperationException e) {
Console.Error.WriteLine(@"ERROR {0}", e.Message);
}
}
public async Task InsertTodoItemAsync(ToDoItemDocDb todoItem)
{
try {
await todoTable.InsertAsync(todoItem); // Insert a new TodoItem into the local database.
#if OFFLINE_SYNC_ENABLED
await SyncAsync(); // Send changes to the mobile app backend.
#endif
Items.Add(todoItem);
} catch (MobileServiceInvalidOperationException e) {
Console.Error.WriteLine(@"ERROR {0}", e.Message);
}
}
private async Task InsertTodoItem(ToDoItemDocDb todoItem)
{
// This code inserts a new TodoItem into the database. After the operation completes
// and the mobile app backend has assigned an id, the item is added to the CollectionView.
await todoTable.InsertAsync(todoItem);
todoItems.Add(todoItem);
try
{
await App.MobileService.SyncContext.PushAsync();
}
catch { }
}
private async Task UpdateCheckedTodoItem(ToDoItemDocDb item)
{
// This code takes a freshly completed TodoItem and updates the database.
// After the MobileService client responds, the item is removed from the list.
await todoTable.UpdateAsync(item);
todoItems.Remove(item);
ListItems.Focus(Windows.UI.Xaml.FocusState.Unfocused);
try
{
await App.MobileService.SyncContext.PushAsync();
}
catch { }
}
async partial void OnAdd(UIButton sender)
{
if (string.IsNullOrWhiteSpace(itemText.Text))
{
return;
}
var newItem = new ToDoItemDocDb
{
Text = itemText.Text,
Complete = false
};
await todoService.InsertTodoItemAsync(newItem);
var index = todoService.Items.FindIndex(item => item.Id == newItem.Id);
TableView.InsertRows(new[] { NSIndexPath.FromItemSection(index, 0) },
UITableViewRowAnimation.Top);
itemText.Text = "";
}
public ToDoItemDocDbWrapper(ToDoItemDocDb item)
{
ToDoItem = item;
}
