public async Task<bool> MarkAs (ShoppingListItem item, bool mark)
{
if ( !IsLoggedIn || item.Id == 0 ) { return false; }
item.Checked = mark;
string url = ITEM_URL + item.Id;
HttpResponseMessage response = await client.PutAsJsonAsync<ShoppingListItem> (url, item);
ShoppingListItem modified = await response.Content.ReadAsAsync<ShoppingListItem> ();
return modified.Checked == mark;
}
public Task<bool> MarkAsNotDone (ShoppingListItem item)
{
return MarkAs (item, false);
}
public Task<bool> MarkAsDone (ShoppingListItem item)
{
return MarkAs (item, true);
}