Question

Hi there im using Linq for check if two user fields correspond for an unique user register in SQL Table, for example

UID : userID PIN : passID

so fields have to be from a single user, i was trying this:

 public bool AutentificacionUsuario(string userID , string password passID)     {         USER _userID = _db.USER.FirstOrDefault(uid => uid.siglas == userID);         USER _passID = _db.USER.FirstOrDefault(pwd => pwd.codigousuario == passID); 

but boths returns a USER Table instance from Datacontext (two instead one), i want to match them in lambda expression like if ‘ this userID match passID’

Thanks!

Answer 1

var usr = db.Users.From(uid => uid.dsiglas == userID &&              uid.codigousuario == passID).FirstOrDefault();  if(usr != null)    //Authenticate user here 

or

var usr = (from u in db.Users           where u.dsiglas == userID && uid.codigousuario == passID           select u).FirstOrDefault()  if(usr != null)     //Authenticate user here