Linq to Sharepoint

// Get DataContext from page context DataContext data = new DataContext(SPContext.Current.Web.Url);  // Get the SharePoint list EntityList Customers = data.GetList("Customers");  // Query for customers from London var londonCustomers = from customer in Customers                       where customer.City == "London"                       select customer;  foreach (var londonCust in londonCustomers) {     Console.Writeline("id = {0}, City = {1}",                        londonCust.CustomerId,                        londonCust.City); }

ref MSDN

http://msdn.microsoft.com/en-us/library/ee535491.aspx