排除来自与实体框架4和数据库中的字段/属性; code-第一 [英] Exclude a field/property from the database with Entity Framework 4 & Code-First

问题描述

我会想知道，有没有办法排除从数据库中的某些字段？对于例如：

I will like to know that is there a way to exclude some fields from the database? For eg:

public class Employee
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string FatherName { get; set; }

    public bool IsMale { get; set; }
    public bool IsMarried { get; set; }

    public string AddressAs { get; set; }
}

我如何从数据库中排除AddressAs领域？

How can I exclude the AddressAs field from the database?

推荐答案

在当前版本的排除性的唯一方法是显式地映射所有其他列：

In the current version the only way to exclude a property is to explicitly map all the other columns:

builder.Entity<Employee>().MapSingleType(e => new {
  e.Id,
  e.Name,
  e.FatherName,
  e.IsMale,
  e.IsMarried
});

由于AddressAs未被引用它不是实体/数据库的一部分。

Because AddressAs is not referenced it isn't part of the Entity / Database.

该EF队的考虑的补充是这样的：

The EF team is considering adding something like this:

builder.Entity<Employee>().Exclude(e => e.AddressAs);

我建议你告诉留在EFDesign博客评论，要求此功能：）

I suggest you tell leave a comment on the EFDesign blog, requesting this feature :)

希望这有助于

亚历

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