private void btnClose_Click(object sender, EventArgs e)
{
this.Visible = false;
AdminDashboard admin = new AdminDashboard();
admin.ShowDialog();
}
private void btnBack_Click(object sender, EventArgs e)
{
AdminDashboard admin = new AdminDashboard();
admin.Show();
this.Hide();
}
private void loginBtn_Click(object sender, EventArgs e)
{
//validation
if (!Regex.Match(unameTxtBox.Text, "^[a-zA-Z]*$").Success)
{
MessageBox.Show("Username is not valid");
unameTxtBox.Focus();
return;
}
//if (!Regex.Match(passTxtBox.Text, @"^(.{0,7}|[^0-9]*|[^A-Z])$").Success)
//{
// MessageBox.Show("Password is not valid");
// unameTxtBox.Focus();
// return;
//}
//encrypting the password before passing it to login procedure
byte[] passwordHashed = new byte[] { };
try
{
var md5 = new MD5CryptoServiceProvider();
var data = Encoding.ASCII.GetBytes(passTxtBox.Text);
passwordHashed = md5.ComputeHash(data);
}
catch (Exception err)
{
MessageBox.Show(err.Message);
throw;
}
sqlCommand1.CommandText = "Login @uname, @pass";
sqlCommand1.Parameters.AddWithValue("@uname", unameTxtBox.Text);
sqlCommand1.Parameters.AddWithValue("@pass",
Encoding.ASCII.GetString(passwordHashed));
SqlDataReader dr = null;
try
{
sqlConnection1.Open();
dr = sqlCommand1.ExecuteReader();
if (dr.Read())
{
this.Hide();
//if true then he is a student
if ((bool)dr[0])
{
CurrentStudent = new Student(dr.GetInt32(1), dr.GetString(2) + ' ' + dr.GetString(3), dr.GetDateTime(4), dr.GetString(6));
dr.Close();
sqlConnection1.Close();
var dashboard = new StudentDashboard();
// closes hidden prev window if dashboard is closed
dashboard.Closed += (s, args) => this.Close();
dashboard.Show();
}
else
{
dr.Close();
sqlConnection1.Close();
var dashboard = new AdminDashboard();
// closes hidden prev window if dashboard is closed
dashboard.Closed += (s, args) => this.Close();
dashboard.Show();
}
}
else
{
MessageBox.Show("Wrong Username or Password!");
}
}
catch (Exception err)
{
MessageBox.Show(err.Message);
throw;
}
finally
{
dr.Close();
sqlConnection1.Close();
sqlCommand1.Parameters.Clear();
}
}
