asp.net MVC Tutorial: Database table additions and deletions

Preliminary knowledge:

1. Understand Reflection technology

2, understand c#3.0 extension methods, distribution classes, LINQ to Object,linq to SQL

3. Understanding ASP.net MVC

Each add a table in the project will often add a set of additions and deletions to the code, and the code is very similar in many cases, here we give a general solution for your reference.

First, the preparatory work:

Here we first add two table news and user to the database as follows: Then drag into the dbml to generate the entity classes.

Here we first prepare an interface: icommontable

public interface Icommontable { int ID {get; set;} }

Then let both the news and the user entities inherit from this interface

public partial class News:icommontable { } public partial class User:icommontable { }