private void btnLogin_Click(object sender, EventArgs e)
        {
            string        connectionString = @"server = SHAWON\SQLEXPRESS;database = bus; integrated security = sspi;";
            SqlConnection connection       = new SqlConnection(connectionString);

            connection.Open();

            SqlDataAdapter sda = new SqlDataAdapter("Select count(*) From Login where Username='******' and Password = '******'", connection);
            DataTable      dt  = new DataTable();

            sda.Fill(dt);
            if (dt.Rows[0][0].ToString() == "1")
            {
                MessageBox.Show("Successfully Logged In");
                this.Hide();
                MDIParent1 ss = new MDIParent1();
                ss.Show();
            }
            else
            {
                MessageBox.Show("Please Check your Username and password");
            }
        }