private void ToOrderBills()
{
try
{
IOrderedEnumerable <Bill> bills = null;
switch (SelectedOrder)
{
case "Descrição - Crescente":
bills = Bills.OrderBy(o => o.Description);
break;
case "Descrição - Decrescente":
bills = Bills.OrderByDescending(o => o.Description);
break;
default:
return;
}
Bills = new ObservableRangeCollection <Bill>(bills);
OnPropertyChanged("Bills");
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// Withdraw an amount of money from the register.
/// </summary>
/// <param name="amount">Amount of money to be withdrawn.</param>
/// <returns>Response message for display to user.</returns>
public Response Withdraw(int amount)
{
Response response = new Response();
if (amount > 0)
{
// amount = 100 * (amount / 100) + 50 * (amount / 50) + 20 * (amount / 20) + 10 * (amount / 10) + 5 * (amount / 5) + 1 * (amount / 1)
List <BillBase> sieve = Bills.OrderByDescending(item => item.Value).ToList();
if (sieve.Count == 0)
{
response.Message += "\n";
response.Message += "Failure: Insufficient Funds";
response.Message += "\n";
return(response);
}
int remainingAmount = amount;
List <BillBase> withdraw = new List <BillBase>();
while (remainingAmount != 0)
{
BillBase biggestBill = sieve.FirstOrDefault();
if (biggestBill != null)
{
if (remainingAmount - biggestBill.Value < 0)
{
sieve.RemoveAll(item => item.Code == biggestBill.Code);
}
else
{
withdraw.Add(biggestBill);
sieve.Remove(biggestBill);
remainingAmount -= biggestBill.Value;
}
}
else
{
response.Message += "\n";
response.Message += "Failure: Insufficient Funds";
response.Message += "\n";
return(response);
}
}
if (remainingAmount == 0)
{
response.Message += "\n";
response.Message += "Success: Dispensed $" + Convert.ToString(amount);
response.Message += "\n";
foreach (BillBase bill in withdraw)
{
Bills.Remove(bill);
}
response.Message += FullInventory().Message;
}
}
return(response);
}
private void RefreshBillListItems()
{
switch (_SortOptions.GetLastOption())
{
case "Id":
if (_SortOptions.GetDescending())
{
_DBConnection.Bills = Bills.OrderByDescending(x => x.Id).ToList <DBConnection.Bill>();
}
else
{
_DBConnection.Bills = Bills.OrderBy(x => x.Id).ToList <DBConnection.Bill>();
}
break;
case "Category":
if (_SortOptions.GetDescending())
{
_DBConnection.Bills = Bills.OrderByDescending(x => x.Category).ToList <DBConnection.Bill>();
}
else
{
_DBConnection.Bills = Bills.OrderBy(x => x.Category).ToList <DBConnection.Bill>();
}
break;
case "DueDate":
if (_SortOptions.GetDescending())
{
_DBConnection.Bills = Bills.OrderByDescending(x => x.DueDate).ToList <DBConnection.Bill>();
}
else
{
_DBConnection.Bills = Bills.OrderBy(x => x.DueDate).ToList <DBConnection.Bill>();
}
break;
case "ForMonth":
if (_SortOptions.GetDescending())
{
_DBConnection.Bills = Bills.OrderByDescending(x => x.ForMonth).ToList <DBConnection.Bill>();
}
else
{
_DBConnection.Bills = Bills.OrderBy(x => x.ForMonth).ToList <DBConnection.Bill>();
}
break;
case "Amount":
if (_SortOptions.GetDescending())
{
_DBConnection.Bills = Bills.OrderByDescending(x => x.Amount).ToList <DBConnection.Bill>();
}
else
{
_DBConnection.Bills = Bills.OrderBy(x => x.Amount).ToList <DBConnection.Bill>();
}
break;
case "Paid":
if (_SortOptions.GetDescending())
{
_DBConnection.Bills = Bills.OrderByDescending(x => x.Paid).ToList <DBConnection.Bill>();
}
else
{
_DBConnection.Bills = Bills.OrderBy(x => x.Paid).ToList <DBConnection.Bill>();
}
break;
}
_DBConnection.ReOrderMonthBills();
Bills.Clear();
MonthBills.Clear();
foreach (DBConnection.Bill bill in _DBConnection.Bills)
{
Bills.Add(bill);
}
foreach (DBConnection.Bill bill in _DBConnection.MonthBills)
{
MonthBills.Add(bill);
}
}