private void btnToWelcome_Click(object sender, EventArgs e)
{
WelcomeForm welcome = new WelcomeForm();
welcome.Show();
this.Hide();
}
private void btnWithdraw_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(connection.Con);
SqlCommand cmd = new SqlCommand("Command String", con);
SqlDataReader readdata;
try
{
con.Open();
int account = show.AccNum;
int withdrawBalance = int.Parse(textWithdraw.Text);
int balance = 0;
cmd.CommandText = "SELECT accBalance FROM [Accounts] WHERE accNumber = '" + account + "'";
cmd.ExecuteNonQuery();
readdata = cmd.ExecuteReader();
readdata.Read();
balance = int.Parse(readdata["accBalance"].ToString());
con.Close();
if (withdrawBalance <= balance)
{
MessageBox.Show("Выполнено успешно!");
WelcomeForm Welcome = new WelcomeForm();
con = new SqlConnection(connection.Con);
SqlCommand cmda = new SqlCommand("Command String", con);
con.Open();
int balanceDB = balance - withdrawBalance;
cmda.CommandText = "UPDATE [Accounts] SET accBalance = '" + balanceDB + "' WHERE accNumber = '" + account + "'";
cmda.ExecuteNonQuery();
con.Close();
con = new SqlConnection(connection.Con);
SqlCommand cmdHistory = new SqlCommand("Command String", con);
con.Open();
DateTime date = DateTime.Now;
String des = "Снятие наличных. Сумма снятия: " + textWithdraw.Text;
cmdHistory.CommandText = "INSERT INTO [History] (accNumber, currentBalance, description, accBalance, date) " +
"VALUES(@account,@balance,@des,@balanceDB, @date);";
cmdHistory.Parameters.AddWithValue("@account", account);
cmdHistory.Parameters.AddWithValue("@balance", balance);
cmdHistory.Parameters.AddWithValue("@des", des);
cmdHistory.Parameters.AddWithValue("@balanceDB", balanceDB);
cmdHistory.Parameters.AddWithValue("@date", date);
cmdHistory.ExecuteNonQuery();
con.Close();
con.Dispose();
Welcome.Show();
this.Hide();
}
else
{
MessageBox.Show("Недостаточно денежных средств! Пожалуйста, попробуйте еще раз!");
textWithdraw.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void btnChangePIN_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(connection.Con);
SqlCommand cmd = new SqlCommand("Command String", con);
SqlDataReader readdata;
try
{
con.Open();
int account = show.AccNum;
int oldPIN = int.Parse(textOldPIN.Text);
int newPIN = int.Parse(textNewPIN.Text);
int oldPINDB = 0;
cmd.CommandText = "SELECT accPIN FROM [Accounts] WHERE accNumber = '" + account + "'";
cmd.ExecuteNonQuery();
readdata = cmd.ExecuteReader();
readdata.Read();
oldPINDB = int.Parse(readdata["accPIN"].ToString());
con.Close();
if (oldPIN == oldPINDB)
{
MessageBox.Show("Выполнено успешно!");
WelcomeForm Welcome = new WelcomeForm();
con = new SqlConnection(connection.Con);
SqlCommand cmda = new SqlCommand("Command String", con);
con.Open();
cmda.CommandText = "UPDATE [Accounts] SET accPIN = '" + newPIN + "' WHERE accNumber = '" + account + "'";
cmda.ExecuteNonQuery();
con.Close();
con.Dispose();
Welcome.Show();
this.Hide();
}
else
{
MessageBox.Show("Неверный PIN код! Пожалуйста, попробуйте еще раз!");
textOldPIN.Clear();
textNewPIN.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void btnLogin_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(connection.Con);
SqlCommand cmd = new SqlCommand("Command String", con);
SqlDataReader readdata;
try
{
con.Open();
int account = int.Parse(textCardNum.Text);
int pin = int.Parse(textPIN.Text);
int accountDB = 0;
int pinDB = 0;
string name = null;
cmd.CommandText = "SELECT * FROM [Accounts] WHERE accNumber = '" + account + "'";
readdata = cmd.ExecuteReader();
while (readdata.Read())
{
accountDB = int.Parse(readdata["accNumber"].ToString());
pinDB = int.Parse(readdata["accPIN"].ToString());
name = readdata["name"].ToString();
}
con.Close();
con.Dispose();
if ((account == accountDB) && (pin == pinDB))
{
MessageBox.Show("Вы успешно выполнили вход, " + name);
show.AccNum = accountDB;
WelcomeForm Welcome = new WelcomeForm();
Welcome.Show();
this.Hide();
}
else
{
MessageBox.Show("Аккаунт не найден! Пожалуйста, попробуйте еще раз!");
textCardNum.Clear();
textPIN.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void btnTransfer_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(connection.Con);
SqlCommand cmd = new SqlCommand("Command String", con);
SqlDataReader readdata;
try
{
con.Open();
int account = show.AccNum;
int transferBalance = int.Parse(textAmountTransfer.Text);
int transferAccount = int.Parse(textTransferNum.Text);
int balance = 0;
int balanceRecipient = 0;
cmd.CommandText = "SELECT accBalance FROM [Accounts] WHERE accNumber = '" + account + "'";
readdata = cmd.ExecuteReader();
readdata.Read();
balance = int.Parse(readdata["accBalance"].ToString());
con.Close();
con = new SqlConnection(connection.Con);
SqlCommand cmdTransfer = new SqlCommand("Command String", con);
SqlDataReader readdataTransfer;
con.Open();
cmdTransfer.CommandText = "SELECT accBalance FROM [Accounts] WHERE accNumber = '" + transferAccount + "'";
readdataTransfer = cmdTransfer.ExecuteReader();
readdataTransfer.Read();
balanceRecipient = int.Parse(readdataTransfer["accBalance"].ToString());
con.Close();
if (transferBalance <= balance)
{
MessageBox.Show("Выполнено успешно!");
WelcomeForm Welcome = new WelcomeForm();
con = new SqlConnection(connection.Con);
SqlCommand cmda = new SqlCommand("Command String", con);
con.Open();
int balanceDB = balance - transferBalance;
cmda.CommandText = "UPDATE [Accounts] SET accBalance = '" + balanceDB + "' WHERE accNumber = '" + account + "'";
cmda.ExecuteNonQuery();
con = new SqlConnection(connection.Con);
SqlCommand cmdaTransfer = new SqlCommand("Command String", con);
con.Open();
int balanceDBRecipient = balanceRecipient + transferBalance;
cmdaTransfer.CommandText = "UPDATE [Accounts] SET accBalance = '" + balanceDBRecipient + "' WHERE accNumber = '" + transferAccount + "'";
cmdaTransfer.ExecuteNonQuery();
con.Close();
con = new SqlConnection(connection.Con);
SqlCommand cmdHistory = new SqlCommand("Command String", con);
con.Open();
DateTime date = DateTime.Now;
String des = "Перевод на карту " + textTransferNum.Text + ". Сумма перевода: " + textAmountTransfer.Text;
cmdHistory.CommandText = "INSERT INTO [History] (accNumber, currentBalance, description, accBalance, date) " +
//"VALUES('" + account + "', '" + balance + "','" + des + "','" + balanceDB + "');";
"VALUES(@account,@balance,@des,@balanceDB, @date);";
cmdHistory.Parameters.AddWithValue("@account", account);
cmdHistory.Parameters.AddWithValue("@balance", balance);
cmdHistory.Parameters.AddWithValue("@des", des);
cmdHistory.Parameters.AddWithValue("@balanceDB", balanceDB);
cmdHistory.Parameters.AddWithValue("@date", date);
cmdHistory.ExecuteNonQuery();
con.Close();
con = new SqlConnection(connection.Con);
SqlCommand cmdHistory1 = new SqlCommand("Command String", con);
con.Open();
DateTime date1 = DateTime.Now;
String des1 = "Начисление от " + account + ". Сумма начисления: " + textAmountTransfer.Text;
cmdHistory1.CommandText = "INSERT INTO [History] (accNumber, currentBalance, description, accBalance, date) " +
//"VALUES('" + account + "', '" + balance + "','" + des + "','" + balanceDB + "');";
"VALUES(@account,@balance,@des,@balanceDB, @date);";
cmdHistory1.Parameters.AddWithValue("@account", transferAccount);
cmdHistory1.Parameters.AddWithValue("@balance", balanceRecipient);
cmdHistory1.Parameters.AddWithValue("@des", des1);
cmdHistory1.Parameters.AddWithValue("@balanceDB", balanceDBRecipient);
cmdHistory1.Parameters.AddWithValue("@date", date);
cmdHistory1.ExecuteNonQuery();
con.Close();
con.Dispose();
Welcome.Show();
this.Hide();
}
else
{
MessageBox.Show("Недостаточно денежных средств! Пожалуйста, попробуйте еще раз!");
textTransferNum.Clear();
textAmountTransfer.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
