poco

I am using the Service Layer --> Repository --> Entity Framework (Code-First) w/POCO objects approach, and I am having a hard time with updating entities. I am using AutoMapper to map my Domain Objects to my View Models and that works good for getting the data, no how do I get that changes back into the database? Using pure POCO objects, I would assume that there is no sort of change tracking, so I see my only option is to handle it myself. Do you just make sure that your View Models have the EXACT same properties as your Domain Objects? What if I just change a field or two on the View Model?

I've got a project with 3 simple tables, a couple of POCO classes, and a DBContext created with code, no edml file. The following code setup used to work with the beta of Entity Framework code-first, I've edited the DbContext code since the ModelBuilder changed from the beta to RC Tables (simple tables many-to-many table has fields declared as foreign keys with cascade deletion): CREATE TABLE [dbo].[Bookings]( [ID] [int] IDENTITY(1,1) NOT NULL, [StartDate] [datetime] NOT NULL, [EndDate] [datetime] NOT NULL, [AccountId] [varchar](50) NOT NULL, CONSTRAINT [PK_Bookings] PRIMARY KEY CLUSTERED (

I have a general difference of opinion on an architectural design and even though stackoverflow should not be used to ask for opinions I would like to ask for pros and cons of both approaches that I will describe below: Details: - C# application - SQL Server database - Using Entity Framework - And we need to decide what objects we are going to use to store our information and use all throughout the application Scenario 1: We will use the Entity Framework entities to pass all around through our application, for example the object should be used to store all information, we pass it around to the

https://www.lizenghai.com/archives/24384.html 来源： https://www.cnblogs.com/yfacesclub/p/11828600.html

I read somewhere in stackoverflow itself that when we use POCO classes for WCF contracts using Poco generator , we need not use DataContract and DataMember attributes.WCF do it auto for you? . I don't know how it manages this. I created a sample application without using these attributes and I was able to generate those entities on client side and use them. I disabled proxy generation and Lazy loading. Am i missing anything here.? Is there really no need of putting these attributes. You did it right way. Since WCF 3.5 SP1 it is not needed to add DataContract and DataMember attributes. If

In Entity Framework 4 Is it possible to choose to load some queries into a POCO without it using proxy classes? (For the purpose of caching that object for future read only use). I am using the Repository - Service pattern. By this I mean: var order = _orderService.GetById(1); // after order is loaded then we can see in the debugger that: // order.Customer is of type System.Data.Entity.DynamicProxy.Customer_17631AJG_etc What I want is for the order.Customer to actually use the POCO type MyApp.Models.Entities.Customer instead of a proxy to that type. EDIT: Based on Ladislav's suggestion to add