can anyone help me figure out what I'm doing wrong. I'm new to nhibernate and I'm finding it quite hard to really get comfortable with it. I have this query:
var results2 = (from purchase in _session.Query<Purchase>()
group purchase by new { purchase.symbol } into purchases
select new Quote()
{
shares= purchases.Sum(p => p.shares)
}).ToList();
but I get notsupportedexception and the error message is just newexpression.
Looking at the question's date, I guess that question was about NHibernate pre-3.2.
Assuming that your Quote
is a simple POCO class and you use NHibernate 3.2 or later, this query works fine - see my blog post for some details about GroupBy
capabilities in NHibernate.
So the solution simply is to upgrade.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With