private async void ButtonSave_Click(object sender, RoutedEventArgs e)
 {
     var todoItem = new BlogSubscription { BlogName = "BLOG " + DateTime.Now.ToString() };
     await InsertTodoItem(todoItem);
 }
 private async Task InsertTodoItem(BlogSubscription todoItem)
 {
     await todoTable.InsertAsync(todoItem);
     items.Add(todoItem);
 }
        private async Task UpdateCheckedTodoItem(BlogSubscription item)
        {
                      
            //await todoTable.UpdateAsync(item); 
            await todoTable.DeleteAsync(item);
            items.Remove(item);
            ListItems.Focus(Windows.UI.Xaml.FocusState.Unfocused);

        }