private async void repopulate_POList(int building)
{
lstbxOpen.Items.Clear();
List <Workload> openPOrders = (await _repo.GetOpenPOAsync(building)).ToList();
openPOrders.ForEach(a => lstbxOpen.Items.Add(a.ProductOrderID + ": " + a.ProductName + ", " + a.PrepTime));
}