实体框架4.0：添加缩放属性给出错误（属性未映射：11009）？ [英] Entity Framework 4.0: Adding scaler property gives error (property it not mapped: 11009)?

问题描述

我想在我的一个模型（表）中添加一个新的属性。基本上它是一个数据库中不存在的属性，但是我需要将其添加到我的模型中，以便自定义生成工具（自身跟踪实体生成器）将在自定义生成的文件中创建属性。

I wanted to add a new property to one of my model (table). Basically its a property that doesn't exist in the database but i need to add it to my model so that the custom generation tool (self tracking entity generator) will create the the property inside the the custom generated file.

我添加了一个缩放属性，它的一个字符串，并称为testme，但它给我以下错误，任何人知道我如何解决这个问题？

I added a scaler property, its a string and called testme but it gives me the following error, Anybody know how i can fix this?

错误2538错误11009：未映射属性'testme'。

Error 2538 Error 11009: Property 'testme' is not mapped.

我很困惑，为什么我需要将其映射到表...它的表中不存在的字段...

I am confused why do i need to map it to a table... its a field that doesn't exist in the table ...

任何帮助非常感谢

谢谢

推荐答案

通常，您将未映射的属性添加到部分类，而不是通过模型。也就是说，使用酌情权;未映射的属性可能会令人困惑，因为它们大多不能用于LINQ to Entities查询。

Generally, you add un-mapped properties to a partial class instead of via the model. That said, use discretion; un-mapped properties can be confusing, since they mostly can't be used in LINQ to Entities queries.

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