Vondella21:

i tried to to validate my Username remotely ,unfortunately is not firing here are my codes for viewmodel

public class UsersNew
{
public IList Roles { get; set; }

[Required,StringLength(6,MinimumLength =3)]
[Remote("IsAvailable","Validation")]
[RegularExpression(@"(\S)+",ErrorMessage = "White space is not allowed.")]
public string username { get; set; }

[Required,DataType(DataType.Password)]
public string password { get; set; }

[Required,MaxLength(256),DataType(DataType.EmailAddress)]
public string email { get; set; }
}

my controller

public class ValidationController : Controller
{

public JsonResult IsAvailable(string username)
{
if (!Database.Session.Query().Any(u => u.username == username))
return Json(true, JsonRequestBehavior.AllowGet);
 string suggestedUID = String.Format(CultureInfo.InvariantCulture, "{0} is 
not available ", username);

for (int i = 0; i {
 string altCandidate = username + i.ToString();
 if (!Database.Session.Query().Any(u => u.username == altCandidate))
 {
 suggestedUID = string.Format(CultureInfo.InvariantCulture, "{0} is not 
 available. Try {1}", username,
  altCandidate);
 break;
 }

 }
 return Json("error", JsonRequestBehavior.AllowGet);
 }
 }

i even include default jquery validation

 @Scripts.Render("~/bundles/jquery")
 @Scripts.Render("~/bundles/jqueryval")

what am i doing wrong here?