private void Send_Click(object sender, RoutedEventArgs e)
        {
            bool passedEmptyBoxesStage = SharedFunctions.PassedEmpty(this);

            if (passedEmptyBoxesStage)
            {
                if (IsDate(birthText.Text) == false)
                {
                    SharedFunctions.AddErrors(birthText, "Incorrect format: Example format - 12/06/1972");
                }

                Match match = Regex.Match(bloodTypeText.Text, "^([A-Z]+\\-)(Positive|Negative)$");
                if (match.Success == false)
                {
                    SharedFunctions.AddErrors(bloodTypeText, "Incorrect format: Should be 1 or more letters, a '-' symbol, and then" +
                                              "either Positive or Negative");
                }

                if (SharedFunctions.GetFoundErrors().Count() == 0)
                {
                    ValidateDonorDetails();
                }
                else
                {
                    SharedFunctions.CheckForErrors();
                }
            }
        }
        private void Send_Click(object sender, RoutedEventArgs e)
        {
            bool passedEmptyBoxesStage = SharedFunctions.PassedEmpty(this);
            var  emailAtr = new EmailAddressAttribute();

            if (passedEmptyBoxesStage)
            {
                if (!number.Text.All(Char.IsDigit))
                {
                    SharedFunctions.AddErrors(number, "Contact: Type in only numbers");
                }

                if (pass.Text != confirm.Text)
                {
                    SharedFunctions.AddErrors(pass, "Password confirmation does not match");
                }

                if (emailAtr.IsValid(mail.Text) == false)
                {
                    SharedFunctions.AddErrors(mail, "Please write your email in the format: [email protected]");
                }

                if (SharedFunctions.GetFoundErrors().Count() == 0)
                {
                    AddValidateDetails();
                }
                else
                {
                    SharedFunctions.CheckForErrors();
                }
            }
            //All fields where blank, leave all red, but change as input
            else
            {
                SharedFunctions.Clear(this);
            }
        }