ITimeU.Controllers.AthleteController.EditAthleteDetails C# (CSharp) Method

        public ActionResult EditAthleteDetails(string txtathleteId, string txtfirstName, string txtlastName, string txtemail, string txtpostalAddress, string txtpostalCode, string txtcity,
                                    string txtphoneNumber, string txtgender, string txtbirthDate, string txtstartNumber, string txtathleteClass)
        {
            if (!IsValidInput(txtfirstName, txtlastName, txtemail, txtstartNumber))
            {
                return Content("invalid");
            }
            else
            {
                int athleteid = 0;
                int.TryParse(txtathleteId, out athleteid);
                int birthdate = 0, startnum = 0;
                int gender = 0, athleteclass = 0;

                int.TryParse(txtgender, out gender);
                int.TryParse(txtbirthDate, out birthdate);
                int.TryParse(txtstartNumber, out startnum);
                int.TryParse(txtathleteClass, out athleteclass);

                Gender getGender = getGenderNameById(gender);
                string gendername = "";
                if (getGender != null)
                {
                    gendername = getGender.Name;
                }
                BirthDate getBirthday = getBirthDateById(birthdate);
                int birthyear = 0;
                if (getBirthday != null)
                {
                    birthyear = getBirthday.BirthYear;
                }

                Athlete athleteDb = new Athlete();
                athleteDb.ID = athleteid;
                athleteDb.FirstName = txtfirstName;
                athleteDb.LastName = txtlastName;
                athleteDb.Email = txtemail;
                athleteDb.PostalAddress = txtpostalAddress;
                athleteDb.PostalCode = txtpostalCode;
                athleteDb.PostalPlace = txtcity;
                athleteDb.Gender = gendername;
                athleteDb.Birthday = birthyear;
                athleteDb.Phone = txtphoneNumber;
                athleteDb.Startnumber = startnum;
                athleteDb.ClassID = athleteclass;

                AthleteModel athlete = new AthleteModel(athleteDb);

                athlete.SaveToDb();
                return Content("updated");
            }
        }