----Efcontext objects Get---Singleton mode from the data slot

1 class Program2     {3         Static voidMain (string[] args)4         {5             //DbContext context = Contextfactory.getcontext ();6             //OrderInfo oi = new OrderInfo ()7             //{8             //ordertitle= "Samsung mobile"9             //};Ten             //Oi. CustomerInfo = new CustomerInfo () One             //{ A             //customername= "Chun Yuchon", -             //Customerdate=datetime.now -             //}; the             //context. Set<orderinfo> (). Add (OI); -             //context. SaveChanges (); -             //Console.WriteLine ("OK"); -             //Console.readkey (); +  -             //Test, + addcustomerinfo (); A addorderinfo (); at Save (); -Console.WriteLine ("OK"); - Console.readkey (); -  -         } -         /// <summary> in         ///  -         /// </summary> to         Private Static voidSave () +         { -DbContext context =Contextfactory.getcontext (); the context. SaveChanges (); *         } $ Panax Notoginseng         Private Static voidAddcustomerinfo () -         { theDbContext context =Contextfactory.getcontext (); +Context. Set<customerinfo> (). ADD (NewCustomerInfo () A             { theCustomerName ="Big Zhang Wei", +Customerdate =DateTime.Now -             }); $  $         } -  -         Private Static voidAddorderinfo () the         { -DbContext context =Contextfactory.getcontext ();WuyiContext. Set<orderinfo> (). ADD (NewOrderInfo () the             { -ordertitle="Seven Stars Blades", WuCustomerid=7 -             }); About         } $     } -     /// <summary> -     ///gets the class of the context object -     /// </summary> A      Public Static classcontextfactory +     { the          Public StaticDbContext getcontext () -         { $             //Gets the context object from the data slot, guaranteeing the object's single theDbContext context = CallContext.GetData ("DbContext") asDbContext; the             if(Context = =NULL) the             { the                 //when the data slot does not exist. Create a context object and put it in a data slot -Context =Neweftestentities (); inCallcontext.setdata ("DbContext", context); the             } the             returncontext; About         } the}

----Efcontext objects Get---Singleton mode from the data slot