private void button1_Click(object sender, EventArgs e)
        {
            Login_Page p2 = new Login_Page();

            p2.Show();
            this.Hide();
        }
        private void loginButton_Click(object sender, EventArgs e)
        {
            string username = username_textBox.Text;
            string email    = email_textBox.Text;
            string password = password_textBox.Text;

            try
            {
                SqlConnection Con = new SqlConnection("Data Source=SADDIQUE-USAMA\\SQLEXPRESS;Initial Catalog=Data Source;Integrated Security=True");
                Con.Open();
                SqlCommand Cmd = new SqlCommand("Insert into login values (@a,@b,@c)", Con);
                Cmd.Parameters.AddWithValue("@a", username);
                Cmd.Parameters.AddWithValue("@b", email);
                Cmd.Parameters.AddWithValue("@c", password);


                Cmd.ExecuteNonQuery();
                MessageBox.Show("          Saved Successfully        ");
                username_textBox.Text = " ";
                email_textBox.Text    = " ";
                password_textBox.Text = " ";

                Login_Page p2 = new Login_Page();
                p2.Show();
                this.Hide();
                //data_grid_populate_karna_function();
                //red();
                Cmd.Dispose();
                Con.Close();
            }
            catch
            {
                MessageBox.Show("Make a new Database in your SQL Server and run the given login query in it." +
                                "Give the path of that Database in the project Login Page");
            }
        }