>Never mind, found I have to use Single method instead of Select, then Single.
I know what is wrong here!!! It is wrong to edit your post and delete the original question instead of leaving it and then post the answer so others can benefit from the reading :P
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges