// remove as many of a specified coin as possible, without going over
private decimal removeCoinDenomiation(decimal AmountToRemove, Coin.Denomination denominationEnumeral)
{
var coins =
from aCoin in box
where aCoin.DenominationEnumeral == denominationEnumeral
select aCoin;
var coinArray = coins.ToArray();
decimal amountRemoved = 0M;
decimal amountLeftToRemove = AmountToRemove;
foreach (Coin aCoin in coinArray)
{
if (amountLeftToRemove >= Coin.ValueOfCoin(denominationEnumeral))
{
box.Remove(aCoin);
amountRemoved += aCoin.ValueOf;
amountLeftToRemove -= aCoin.ValueOf;
}
else
{
break;
}
}
return(amountRemoved);
}
//Take a coin of the specified denomination out of the box
//Need to use a LINQ query here
public Boolean Withdraw(Coin.Denomination denomination)
{
bool result = false;
//Count that type of coin first
int foundCoinsCount = CoinCount(denomination);
//Need to find out if there are more than zero of that type of coin
if (foundCoinsCount > 0)
{
//LINQ query to find the coins of this denomination within the box list
var findCoins =
from possibleCandidate in box
where possibleCandidate.CoinEnumeral == denomination
select possibleCandidate;
//Actual removal of the coin object from the list.
box.Remove(findCoins.First());
result = true;
}
//If there were zero of that type of coin, withdraw failed, return false
else
{
result = false;
}
return(result);
}
private int CoinCount(Coin.Denomination kindOfCoin)
{
var result = from coinType in box
where coinType.Key == kindOfCoin
select coinType.Value;
return(result.Sum());
}
private int coinCount(Coin.Denomination denominationEnumeral)
{
var roll =
from coin in box
where coin.DenominationEnumeral == denominationEnumeral
select coin;
return(roll.Count());
}
public bool Withdraw(Coin.Denomination coinType)
{
if (CoinCount(coinType) > 0)
{
box[coinType]--;
NotifyPropertyChanged();
return(true);
}
else
{
return(false);
}
}
//Take a coin of the specified denomination out of the box
public Boolean Withdraw(Coin.Denomination ACoinDenomination)
{
var coins = from coin in this.box
where coin.CoinEnumeral == ACoinDenomination
select coin;
Boolean result = false;
if (coins.Count() > 0)
{
result = this.box.Remove(coins.First());
}
return(result);
}
// take a coin of the specified denomination out of the box
public Boolean Withdraw(Coin.Denomination ACoinDenomination)
{
var aCoin =
from firstCoin in box
where firstCoin.DenominationEnumeral == ACoinDenomination
select firstCoin;
Boolean result = false;
if (aCoin.Count() > 0)
{
result = box.Remove(aCoin.First());
}
return result;
}
public int CoinCount(Coin.Denomination ADenomination)
{
//Create a variable to store the result
int coinCountFound = 0;
//LINQ query to find only coins that match the demonination that was passed in
var findCoins =
from possibleCandidate in box
where possibleCandidate.CoinEnumeral == ADenomination
select possibleCandidate;
//Now store the count of the results as the int variable
coinCountFound = findCoins.Count();
return(coinCountFound);
}
private static decimal convertEnumeralToDecimal(Coin.Denomination denominationEnumeral)
{
return((decimal)denominationEnumeral / 100M);
}
// decimal value of the specified coin denomination
public static decimal ValueOfCoin(Coin.Denomination denominationEnumeral)
{
return(convertEnumeralToDecimal(denominationEnumeral));
}
public void Deposit(Coin.Denomination coinType)
{
box[coinType]++;
NotifyPropertyChanged();
}
