public virtual double Withdraw(int p_widrawalAmount)
{
//trying to connect to db
//throw new System.Data.SqlClient.SqlException("Server not available")
if (p_widrawalAmount == null)
{
throw new NullReferenceException();
}
if (p_widrawalAmount < 0)
{
throw new Exception("Negative widrawl of money");
}
if (AccountNumber.StartsWith("CUR"))
{
if (p_widrawalAmount > AccountBalance + 20000)
{
throw new Exception("Insufficient Balance");
}
}
else if (p_widrawalAmount > AccountBalance)
{
throw new Exception("Insufficient Balance");
}
AccountBalance -= p_widrawalAmount;
return(AccountBalance);
}