private void button2_Click(object sender, EventArgs e)
{
Boolean b = false;
con.Open();
string s = "select * from doctor ";
MySqlCommand cmd = new MySqlCommand(s, con);
MySqlDataReader d = cmd.ExecuteReader();
while (d.Read())
{
string username = d["dName"].ToString();
string password = d["dpassword"].ToString();
if ((username == textBox1.Text) && (password == textBox2.Text))
{
b = true;
}
}
if (b == false)
{
MessageBox.Show("Invalid Click (Ok) to try again");
}
else
{
Doctor_form Dform = new Doctor_form();
this.Hide();
Dform.ShowDialog();
}
con.Close();
}