A LINQ query over XML, based on an XSD typed approach

Support for XSD and Validation of Typed Nodes

var ordersWithCustomersFromXml =
from c in xmlCustomers.customerCollection
join o in orders
on c.Name equals o.Name
orderby c.Name
select new {
Name = c.Name,
City = c.City,
IdProduct = o.IdProduct,
Quantity = o.Quantity };