private void HomeButton_Click(object sender, EventArgs e)
{
this.Hide();
HomeForm hform = new HomeForm();
hform.Show();
}
private void ButtonLogin_Click(object sender, EventArgs e)
{
CONNECT conn = new CONNECT();
DataTable table = new DataTable();
MySqlDataAdapter adapter = new MySqlDataAdapter();
MySqlCommand command = new MySqlCommand();
String query = "SELECT * FROM `users` WHERE `userid`=@usn AND `password`=@pass";
command.CommandText = query;
command.Connection = conn.GetConnection();
command.Parameters.Add("@usn", MySqlDbType.VarChar).Value = textBoxYourid.Text;
command.Parameters.Add("@pass", MySqlDbType.VarChar).Value = textBoxPassword.Text;
adapter.SelectCommand = command;
adapter.Fill(table);
MySqlDataReader myReader;
command.Connection.Open();
myReader = command.ExecuteReader();
int count = 0;
string userRole = string.Empty;
while (myReader.Read())
{
count = count + 1;
userRole = myReader["userid"].ToString();
}
if (count == 1)
{
myReader.Close();
MessageBox.Show("Login is successfully", "Confirmation Message", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.Hide();
if (userRole == "1111")
{
this.Hide();
AdminForm aform = new AdminForm();
aform.Show();
}
else
{
MySqlCommand studentComm = new MySqlCommand("SELECT * FROM `student` where rollid=@id", conn.GetConnection());
MySqlDataAdapter Studentadapter = new MySqlDataAdapter();
studentComm.Parameters.AddWithValue("@id", userRole);
MySqlDataReader studentreader;
studentreader = studentComm.ExecuteReader();
string studentName = string.Empty;
while (studentreader.Read())
{
studentName = studentreader["name"].ToString();
}
Userid = userRole;
StudentName = studentName;
this.Hide();
HomeForm mform = new HomeForm();
mform.Show();
}
}
else
{
if (textBoxYourid.Text.Trim().Equals(""))
{
MessageBox.Show("Enter Your ID to Login", "Empty Your ID", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (textBoxPassword.Text.Trim().Equals(""))
{
MessageBox.Show("Enter Your Password to Login", "Empty Your Password", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("This ID Or Password Doesn't Exists", "Wrong Data", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
