Issue with binary field and named query - nHibernate - nhibernate

Question

I am using nHibernate to try and log a user in using a named query but their password is hashed and so stored as a binary field in the MS SQL DB. However I can't get the login code to work. It throws an error:
using (var session = sessionFactory.OpenSession())
{
user = (CreamUser)session.GetNamedQuery("loginuser")
.SetString("UserName", userName)
.SetBinary("Password", hashedPassword).UniqueResult();
}
<sql-query name="loginuser">
<query-param name="UserName" type="string" />
<query-param name="Password" type="binary" />
<return alias="User" class="components.User"/>
<![CDATA[
SELECT * FROM users
WHERE username=:UserName AND
password=:Password
]]>
</sql-query>
I have tried everything I can think of but can't get this to work.

Answer 1

Ok so I worked it out. I turns out it was to do with the fact the the query I was executing was missing some fields that matched with the type (user) that I was returning.
this was the error in case anyone else comes across this issue:
could not execute query\r\n[ SELECT * FROM users \n WHERE username=#p0 AND \n
password=#p1 ]\r\n Name:UserName - Value:admin Name:Password - Value:System.Byte[]\r\n[SQL:
SELECT * FROM users \n WHERE username=#p0 AND \n password=#p1]
thanks for making me look deeper ExpectoPatronum