Validate model on specific string values

Question

I\'m working on a Web API 2 project. besides the requirement that some properties are required, some only can have specific values. One option is that I could try to save the m

Answer 1

To validate the Gender property I've created a custom validation attribute by creating a new class (attribute):

using System;
using System.Collections.Generic;
using System.Web;
using System.ComponentModel.DataAnnotations;    

namespace MyProject.Models.Validation
{

    public class StringRangeAttribute : ValidationAttribute
    {
        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {

            if(value.ToString() == "M" || value.ToString() == "F")
            {
                return ValidationResult.Success;
            }


            return new ValidationResult("Please enter a correct value");
        }
    }
}