By default, the Entity Framework will assume that all of the names of your tables in your database are either pluralised(复数形式的), or in the case of code first, you would like them to be pluralised when created.

E.g. you have a table called “Product” and not “Products”, or you want your table to be called “Product” and not “Products”

This is the problem that I had. My MVC application consisted of one web page that just dumped out the contents of the “Product” table onto the page. When I browsed to the page, I got an “Invalid object name ‘dbo.Products’.” yellow screen of death runtime error.

The Solutions

1. Rename the table to “Products”. I didn’t want to do this as I’m from the school of singular table names. I was also curious about situations where the tables couldn’t be renamed.

2. Make use of Entity Framework’s fantastic Conventions, that allow you to specify how you have or want your database to be setup.

To tell Entity Framework not to pluralise database table names, simply add the following code into your DbContext class:

public class EfDbContext : DbContext {  public DbSet
     
       Products { get; set; }  protected override void OnModelCreating(DbModelBuilder modelBuilder)  {    modelBuilder.Conventions.Remove
      
       ();  } }
      
     

This code will remove the Pluralising convention that is by default attached to all model builders. You will then be able to access database tables with Singular names

 

之所以这样，是因为开发者就表名是否使用复数没有达成一致。这个教程使用了单数形式，但重点是您可以自己选择使用哪种形式来命名。

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