public static string addFriend(string email, int ID, string listBoxText) { string idNum = getID(email); string connectionString = null; MySqlConnection cnn; connectionString = $"server=localhost;database=SNHUBook;uid=root;pwd={MYSQLPassword};"; cnn = new MySqlConnection(connectionString); int newID = ID + 1; string userEmail = MySQLFunctions.getEmail(newID.ToString()); string query = $"INSERT INTO friends (AccountID, ID, value, email) values ({idNum}, {ID}, '{listBoxText}', '{userEmail}');"; MySqlCommand cmd = new MySqlCommand(query, cnn); MySqlDataReader dr; cnn.Open(); dr = cmd.ExecuteReader(); string home = string.Empty; while (dr.Read()) { home = dr.GetString(0); Console.WriteLine(home); } dr.Close(); cnn.Close(); return(home); }