假设我与客户和产品之间存在1:1的关系。所以我要为两者添加一个表。在我的LINQ to SQL文件中,我使用键和.dbml中的关联进行了大量设置。
现在我插入两个应关联的表:
CustomerDataContext dc = new CustomerDataContext();
Table<Customer> customers = dc.GetTable<Customer>();
Table<Product> products= dc.GetTable<Product>();
Customer newCustomer = new Customer ();
Product newProduct = new Product();
customers.InsertOnSubmit(newCustomer);
products.InsertOnSubmit(newProduct);
customers.Context.SubmitChanges();
那么如何在此时建立关联呢?因此,当我查询此Customer表时,我可以调用相关的Product,例如Customer.Product?
这甚至可能吗?
招呼
答案 0 :(得分:0)
CustomerDataContext dc = new CustomerDataContext();
Table<Customer> customers = dc.GetTable<Customer>();
Table<Product> products= dc.GetTable<Product>();
Table<ProductConsumer> ProductConsumers= dc.GetTable<ProductConsumer>();
Customer newCustomer = new Customer ();
Product newProduct = new Product();
customers.InsertOnSubmit(newCustomer);
products.InsertOnSubmit(newProduct);
customers.Context.SubmitChanges();
products.Context.SubmitChanges();
//Now insert associations
ProductConsumer= new ProductConsumer();
ProductConsumer.Consumer= newCustomer ;
ProductConsumer.Product= newProduct ;
ProductConsumers.InsertOnSubmit(ProductConsumer)
ProductConsumers.Context.SubmitChanges();