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| using System; | |
| using System.Collections.Generic; | |
| using System.Linq; | |
| using System.Text; | |
| using System.Data.Linq; | |
| using System.Data.Linq.Mapping; | |
| namespace cs_crudops | |
| { | |
| class Program | |
| { | |
| static void Main(string[] args) | |
| { | |
| // <Snippet1> | |
| Northwnd db = new Northwnd(@"c:\Northwnd.mdf"); | |
| // Query for a specific customer. | |
| var cust = | |
| (from c in db.Customers | |
| where c.CustomerID == "ALFKI" | |
| select c).First(); | |
| // Change the name of the contact. | |
| cust.ContactName = "New Contact"; | |
| // Create and add a new Order to the Orders collection. | |
| Order ord = new Order { OrderDate = DateTime.Now }; | |
| cust.Orders.Add(ord); | |
| // Delete an existing Order. | |
| Order ord0 = cust.Orders[0]; | |
| // Removing it from the table also removes it from the Customer’s list. | |
| db.Orders.DeleteOnSubmit(ord0); | |
| // Ask the DataContext to save all the changes. | |
| db.SubmitChanges(); | |
| // </Snippet1> | |
| } | |
| } | |
| } |