public bool tryLogin(string username, string password)
    {
        MySqlConnection con = new MySqlConnection("host=hostremoved;user=user_removed;password=passwordremoved;database=databaseremoved;");
        MySqlCommand cmd = new MySqlCommand("SELECT * FROM login WHERE user_name = '" + username + "' AND user_pass = '" + password + "';");
        cmd.Connection = con;
        con.Open();
        MySqlDataReader reader = cmd.ExecuteReader();
        if (reader.Read() != false)
        {

            if (reader.IsDBNull(0) == true)
            {
                cmd.Connection.Close();
                reader.Dispose();
                cmd.Dispose();
                return false;
            }
            else
            {
                cmd.Connection.Close();
                reader.Dispose();
                cmd.Dispose();
                return true;
            }
        }
        else
        {
            return false;
        }
    }

    private void btnlogin_Click(object sender, EventArgs e)
    {
        if (tryLogin(txtuser.Text, txtpass.Text) == true)
        {
            MessageBox.Show("Login worked!");
        }
        else
        {
            MessageBox.Show("Login failed!");

GRANT ALL ON yourDbName.* TO 'yourUser'@'yourIP' IDENTIFIED BY "yourPassword";