private void button13_Click(object sender, EventArgs e)
{
float balance = DAO.get_balance(acwithdraw.Accid);
float newbalance = float.Parse(textBox1.Text.ToString());
Console.WriteLine(balance);
if (balance - newbalance > 0)
{
newbalance = balance - newbalance;
if (DAO.deposit(acwithdraw.Accid, newbalance))
{
MessageBox.Show("取款成功！\n现金账户余额：" + newbalance);
}
else
{
MessageBox.Show("取款成功！\n现金账户余额：" + balance);
}
}
else
{
string accounttype = DAO.get_accounttype(acwithdraw.Accid);
Console.WriteLine(accounttype);
float limit = DAO.get_limit(acwithdraw.Accid);
if (String.Equals(accounttype, "信用卡"))
{
DialogResult r1 = MessageBox.Show("现金余额不足，是否使用信用卡额度", "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (r1.ToString() == "Yes")
{
if (limit + balance > newbalance)
{
if (DAO.deposit(acwithdraw.Accid, 0))
{
limit = limit - (newbalance - balance);
if (DAO.quota(acwithdraw.Accid, limit))
{
MessageBox.Show("取款成功！\n现金账户余额：0\n信用卡余额：" + limit);
}
}
}
else
{
MessageBox.Show("信用卡余额不足！");
}
}
else
{
return;
}
}
else
{
MessageBox.Show("取款失败！\n当前账户余额：" + balance);
}
}
}