Источник:
http://alexvoy.blogspot.com/2008/03/...relations.html
==============
Just to clarify to myself and maybe someone else how
relations on tables work I created this demo project
Demo2TablesRelations.xpo.
There are two tables
Orders2 and
Collections with two relations defined on
Orders2 that work as
dynalinks for
Collections.
When an user chooses an item from
Collection all records in the last are filtered in regards with
CollectionType previously chosen on
Orders form.
To change or add new records to
Collection one can open the appropriate form of this table by pressing
Collection button on
Orders form but the relation should be cleared in
Init method of
Collection form.
if (element.args() && element.args().record().TableId == TableNum(Orders2))
{
Collection_ds.query().dataSourceNo(1).clearDynalinks();
}
Finally, to stand up once, I added the filter option by
CollectionType.
Источник:
http://alexvoy.blogspot.com/2008/03/...relations.html