Hi Kevin,

thanks alot - in my case I'm not inheriting a view, I'm creating a new one (on my own model; the SO example was just as it comes very close to what I'm doing), your suggestion is equivalent to adding the same "domain" entry on the <field name=my_lines.../> I use to link to my child model, right? If so, that didn't fix the issue, had tried that already :-(

cheers

Herbert

PS: Just ran into the same issue again on R12 in another context - darn :-( really no solution here ? :-o

Haven't checked if it works. Just give a try

<record id="some_id" model="ir.ui.view">
            <field name="name">some.name</field>
            <field name="model">sale.order</field>
            <field name="inherit_id" ref="sale.view_order_form"/>
            <field name="arch" type="xml">
                <xpath expr="//field[@name='order_line']" position="attributes">
                    <attribute name="domain">[['product_id', '=', 10]]</attribute>
                </xpath>
            </field>
</record>