private bool ValidateInput()
        {
            //Check name
            if (String.IsNullOrEmpty(NameInput.Text) || NameInput.Text.Length < 3)
            {
                NameErrorLabel.Text      = ValidationMessages.NameMin;
                NameErrorLabel.IsVisible = true;
                return(false);
            }
            NameErrorLabel.IsVisible = false;

            //Check surname
            if (String.IsNullOrEmpty(SurnameInput.Text) || SurnameInput.Text.Length < 3)
            {
                SurnameErrorLabel.Text      = ValidationMessages.NameMin;
                SurnameErrorLabel.IsVisible = true;
                return(false);
            }
            SurnameErrorLabel.IsVisible = false;

            //Check email
            if (!FormDataHelper.IsEmailValid(EmailInput.Text))
            {
                EmailErrorLabel.Text      = ValidationMessages.IncorrectEmail;
                EmailErrorLabel.IsVisible = true;
                return(false);
            }
            EmailErrorLabel.IsVisible = false;

            //Check password
            if (String.IsNullOrEmpty(PasswordInput.Text) || PasswordInput.Text.Length < 6)
            {
                PasswordErrorLabel.Text      = ValidationMessages.PasswordMin;
                PasswordErrorLabel.IsVisible = true;
                return(false);
            }
            PasswordErrorLabel.IsVisible = false;

            //Check passwords equality
            if (String.IsNullOrEmpty(PasswordInput.Text) || !ConfirmPasswordInput.Text.Equals(PasswordInput.Text))
            {
                ConfirmPasswordErrorLabel.Text      = ValidationMessages.PasswordsNotEqual;
                ConfirmPasswordErrorLabel.IsVisible = true;
                return(false);
            }
            ConfirmPasswordErrorLabel.IsVisible = false;

            return(true);
        }
        private bool ValidateInput()
        {
            //Check email
            if (!FormDataHelper.IsEmailValid(Email.Text))
            {
                EmailErrorLabel.Text      = ValidationMessages.IncorrectEmail;
                EmailErrorLabel.IsVisible = true;
                return(false);
            }
            EmailErrorLabel.IsVisible = false;

            //Check password
            if (String.IsNullOrEmpty(Password.Text) || Password.Text.Length < 6)
            {
                PasswordErrorLabel.Text      = ValidationMessages.PasswordMin;
                PasswordErrorLabel.IsVisible = true;
                return(false);
            }
            PasswordErrorLabel.IsVisible = false;

            return(true);
        }