public bool ValidateCustomerInfo(string fn, string ln, string uname, string email, string pwd) { if (!CustomerInfoValidation.ValidateName(fn) || !CustomerInfoValidation.ValidateName(ln)) { Console.WriteLine("Invalid name."); return(false); } if (!CustomerInfoValidation.ValidateUsername(uname) || !DAL.CheckUnique(1, uname)) { Console.WriteLine("Invalid username."); return(false); } if (!CustomerInfoValidation.ValidateEmail(email) || !DAL.CheckUnique(2, uname)) { Console.WriteLine("Invalid email."); return(false); } if (!CustomerInfoValidation.ValidatePwd(pwd)) { Console.WriteLine("Invalid password."); return(false); } return(true); }