Codesmith-nettier saves the master-slave table instance. Of course, the issue of Level 3 Association is similar, and cascade update is performed by relationship.

1 Using System;
2 Using System. Data;
3 Using System. configuration;
4 Using System. collections;
5 Using System. Web;
6 Using System. Web. Security;
7 Using System. Web. UI;
8 Using System. Web. UI. webcontrols;
9 Using System. Web. UI. webcontrols. webparts;
10 Using System. Web. UI. htmlcontrols;
11 Using Bluebeandemo. Data;
12 Using Bluebeandemo. entities;
13
14 Public Partial Class Purchase_purchasecreate: system. Web. UI. Page
15 {
16 Protected   Void Page_load ( Object Sender, eventargs E)
17 {
18
19
20}
21
22 Private   Void Insertrecord ()
23
24 {
25 // Deep storage: stores parent objects and subsets at the same time.
26 /**/ ///*
27 // Deepsave helper method can help you to save an object and its children in
28 // One call.
29 // */
30 // Using northwind. dataaccesslayer;
31 // Order order = order. createorder ("alfki", 1, datetime. Now, datetime. Now,
32 // Datetime. Now, 1, 0.1 m, "ship name", "ship address", "Paris", "IDF", "75000 ",
33 // "France ");
34 // Order. orderdetailcollection. Add (order. orderid, 1, 15.6 M, 10, 0.02f );
35 // Order. orderdetailcollection. Add (order. orderid, 2,122.6 M, 43, 0.03f );
36 // Datarepository. orderprovider. deepsave (order );
37 // Console. writeline ("New Order saved: orderid is:" + order. orderid. tostring ());
38
39 Order order =   New Order ();
40
41 Order. orderid =   9 ;
42 Order. ordertime = Datetime. now;
43 Order. shiptime = Datetime. now;
44 Order. customerid =   4 ;
45 Order. shippathid =   1 ;
46 For ( Int I =   0 ; I <   4 ; I ++ )
47 {
48 Orderitem =   New Orderitem ();
49 Orderitem. orderid =   9 ;
50 Orderitem. productid =   1 ;
51 Orderitem. Price =   2 ;
52 Orderitem. orderitemtype =   1 ;
53 Orderitem. productunitid =   1 ;
54 Orderitem. Amount =   50 ;
55
56
57 Order. orderitemcollection. Add (orderitem );
58 }
59  
60
61 Datarepository. orderprovider. deepsave (order );
62
63
64 }
65 Protected   Void Textbox2_textchanged ( Object Sender, eventargs E)
66 {
67
68}
69 Protected   Void Button#click ( Object Sender, eventargs E)
70 {
71This. Insertrecord ();
72}
73 }
74