CTP5错误？ - CodeFirst TPH - 在子类中标记为NotMapped的重写列的持久值

问题描述

在哪里使用CTP 5 CodeFirst TPH并且在以下情况中似乎存在持久性问题：

Where are using the CTP 5 CodeFirst TPH and there seems to be a persistence issue in the following scenario:

 

public class Product
{
	public int ID { get; set; }

	public virtual string Name { get; set; }

	public string SomeOtherProperty { get; set; }

}

public class SpecialProduct : Product
{
	[System.ComponentModel.DataAnnotations.NotMapped]
	public override string Name { get; set; }

	[System.ComponentModel.DataAnnotations.NotMapped]
	public string ProperlyIgnoredProperty { get; set; }
}

推荐答案

这不是受支持的方案。这实际上是EF（不仅仅是Code First）的一个基本限制，派生类型必须具有其基类型的所有属性。

This isn't a supported scenario. This is actually a fundamental restriction of EF (not just Code First), that a derived type must have all the properties of its base type.

如果你想看到对此添加的支持EF，我们有一个用户语音网站，您可以在其中添加和投票功能; https://data.uservoice.com/forums/72025-ado-net-entity-framework-ef-feature-suggestions

If you wanted to see support for this added to EF, we have a User Voice site where you can add and vote on features; https://data.uservoice.com/forums/72025-ado-net-entity-framework-ef-feature-suggestions

~Rowan

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