I have a table (invoice details) which has two columns (productid and quantity). I created an indexed view on this table in order to know the balance of products.
When a user enters an invoice on a computer, I want to refresh the product balance on another computer, so I need to know which rows in the indexed view were changed.
On
There is no way. You pull (regularly) and update. Any application that needs to distribute data updates that I have ever seen does not do it by updating from SQL Server, but does so by sending updates on their own data feeds implemented by an application server - mostly stock trading applications.
SQL Server has no functionality for this, nor does pretty much every db access layer I have ever seen. You repull and update the in client representation, either regularly (every X seconds) or when the user presses an update button.
Transactional Replication allows you to replicate Indexed Views as Tables. This will track changes to the indexed view and apply them to the subscribers, who have a copy of the indexed view data as a table in the subscriber database.