NHibernate How do I query against an IList property?

Question

I am trying to query against an IList property on one of my domain classes using NHibernate. Here is a simple example to demonstrate:

public cl         


        

Answer 1

As documented here:

17.1.4.1. Alias and property references

we can use:

...
A collection key             {[aliasname].key}      ORGID as {coll.key}
The id of an collection      {[aliasname].id}       EMPID as {coll.id}
The element of an collection {[aliasname].element}  XID as {coll.element}
...

there is a small bug in doc... instead of ".element" we have to use ".elements"

var demos = this.session.CreateCriteria()
        .CreateAlias("Tags", "t")

        // instead of this
        // .Add(Restrictions.Eq("t", "a"))

        // we can use the .elements keyword
        .Add(Restrictions.Eq("t.elements", "a"))

        .List();