/// <summary>
 ///     Is email already exist.
 /// </summary>
 /// <returns></returns>
 public bool IsEmailDoesntExist()
 {
     if (AppVar.Setting.IsFirstUserFound)
     {
         // first user is already registered.
         ApplicationUser user;
         if (UserManager.IsEmailExist(_viewMdoel.Email))
         {
             ErrorCollector.AddHigh(MessageConstants.EmailExist, "", "", "",
                                    MessageConstants.SolutionContactAdmin);
             return(false); // not valid
         }
     }
     return(true);
 }