LINQ to XML is a provider that allows you to use LINQ to query and manipulate XML.
Add a new console application project named Ch09_LINQandXML. Add a new ADO.NET Entity Data Model item named Northwind. Use Code First from database, connect to the Northwind database on the server named (localdb)\mssqllocaldb, and select all the tables.
Import System.Xml.Linq. In the Main method, write the following statements:
var db = new Northwind();
var products = db.Products.ToArray();
var xml = new XElement("products",
from p in products
select new XElement("product",
new XAttribute("id", p.ProductID),
new XAttribute("price", p.UnitPrice),
new XElement("name", p.ProductName)));
Console.WriteLine(xml.ToString());Run the application. Notice that the structure of the XML generated matches the elements and attributes that the LINQ to XML statement declaratively...