Question

I have a database with a table users. I generate the EF .edmx from the database and I can then access the users via:

public ActionResult Index()
    {
        var obj = context.Users.ToList();
        return View(obj);
    }

Which is fine my problem is that when I do the edit:

public ActionResult Edit(Guid id)
    {
        var obj = context.Users.Where(c => c.UserId == id).SingleOrDefault();
        return View(obj);
    }

I have no idea how to access the User model to add validation message? I was hoping to see something like:

public class User
{
    [Required]
    [Display(Name = "username")]
    public string UserName { get; set; }
{

But I don’t and I’m novice and don’t really understand how to access / edit this model when generate from a database. Any advice tutorials would be appreciated.

Answer 1

see if u were using code first u could have used what user MISHA has suggested, u r using database first (as u are generating edmx from DB). In this case for mvc-validation to hook automatically- you have provide model’s metadata.

You can create a metadata as below

    namespace Your_Models_NameSpace
    {
        [MetadataType(typeof(UserMetaData))]
        public partial class User
        {        
            public class UserMetaData
            {
                [DisplayName("User Name")]
                [Required(ErrorMessage = "Please provide a valid username")]
                public object UserName { get; set; }
          }
       }
}