/// <summary>
/// Gets all completed task async.
/// </summary>
/// <returns>The all completed task async.</returns>
public async Task <IList <TodoItem> > GetAllCompletedTaskAsync()
{
IList <TodoItem> items = null;
try
{
items = await _repo.GetAllCompletedTaskAsync();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
return(items);
}