private void Password_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
LogIn.PerformClick();
UseName.Text = "";
password.Text = "";
UseName.Focus();
}
}
// Algoritmo de pesquisa recursiva de ficheiros, invoca delegate useName para cada
// ficheiro encontrado, criando assim independência entre a pesquisa e o processamento
// dos resultados, sem ter de armazenar os resultados numa colecção intermédia e adiar
// o seu processamento para o final da pesquisa.
//
private static void FindFiles(string folder, string pattern, UseName useName)
{
Console.WriteLine("FOLDER: " + folder);
try
{
foreach (string filename in Directory.EnumerateFiles(folder, pattern))
{
Console.WriteLine("File: " + filename);
useName(filename);
}
foreach (string subfolder in Directory.EnumerateDirectories(folder))
{
FindFiles(subfolder, pattern, useName);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
private void Button2_Click(object sender, EventArgs e)
{
try
{
using (SqlConnection con = new SqlConnection(Properties.Settings.Default.conString))
{
using (SqlCommand cmd = new SqlCommand("SELECT UserName, Password FROM t_register WHERE UserName = '******'" +
"AND Password='******' "))
{
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
con.Open();
using (SqlDataReader sdr = cmd.ExecuteReader())
{
sdr.Read();
string use = sdr["UserName"].ToString();
String paw = sdr["Password"].ToString();
if (use == UseName.Text.ToString() && paw == password.Text.ToString())
{
MessageBox.Show("Success !!");
this.Hide();
sAoPage ss = new sAoPage();
ss.Show();
}
}
con.Close();
}
}
}
catch (Exception)
{
MessageBox.Show("Invalid User Name / Password");
}
UseName.Text = "";
password.Text = "";
UseName.Focus();
}
private void OKBtn_Click(object sender, RoutedEventArgs e)
{
if (UseName.Text == "")
{
MessageBox.Show("请输入用户名");
}
else if (key1.Text == "" || key2.Text == "" || key3.Text == "" || key4.Text == "")
{
MessageBox.Show("请输入完整的注册号码！");
}
else
{
try
{
using (SqlConnection conn = new SqlConnection(conStr))
{
conn.Open();
using (SqlCommand cmd = new SqlCommand("", conn))
{
string regID = key1.Text + key2.Text + key3.Text + key4.Text;
//string regID = "MMACS00500WH339GH68M";
byte[] bregID;
bregID = AES.AESEncrypt(regID);
cmd.CommandText = "select * from RegTable where RegID=@RegID";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("RegID", bregID);
SqlDataReader dr = cmd.ExecuteReader();
if (!dr.Read())
{
MessageBox.Show("输入的注册码不正确！", "警告", MessageBoxButton.OK, MessageBoxImage.Warning);
}
else
{
dr.Close();
cmd.CommandText = "select AutherPWD from AuthorTable where Name=@Name";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("Name", UseName.Text);
dr = cmd.ExecuteReader();
if (!dr.Read())
{
MessageBox.Show("该用户不存在，请先注册或检查输入的用户名是否正确");
}
else
{
string pwd = AES.AESDecrypt((byte[])dr[0]);
string message = "您的登录密码为：" + pwd;
MessageBox.Show(message);
UseName.Clear();
key1.Clear();
key2.Clear();
key3.Clear();
key4.Clear();
}
}
}
}
}
catch
{
MessageBox.Show("无法连接数据库！");
this.Close();
}
}
}