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如何在ASP.Net的App_Code文件夹中引用用另一种语言编写的代码？

[英]How can you reference code written in another language in the App_Code folder in ASP.Net?

原文 2008-10-19 00:14:27 6 4 c#/ asp.net

Due to legacy issues I have two folders under App_Code directory. 由于遗留问题，我在App_Code目录下有两个文件夹。 One for VB.Net and another for C#. 一个用于VB.Net，另一个用于C＃。 Problem is, I have a service in the C# folder that needs to leverage a class in the VB.Net folder but they dont seem to know about each other. 问题是，我在C＃文件夹中有一个服务，需要利用VB.Net文件夹中的类，但是他们似乎彼此不了解。 Any ideas are welcome :) 任何想法都欢迎:)

Thanks in advance! 提前致谢！

Trev 崔佛

4 个解决方案

I had this same problem and ended up having to move the code to a class library and not use App_Code, so my answer is: 我遇到了同样的问题，最终不得不将代码移到类库中而不使用App_Code，所以我的答案是：

Unless someone has a solution for you, move your code that needs to be seen by both into a separate class library project. 除非有人为您提供解决方案，否则将两者都需要查看的代码移到单独的类库项目中。

Here is a very good example about mixing C# and VB in the same Web project... 这是一个关于在同一Web项目中混合C＃和VB的很好的例子。

The trick is done using the codeSubDirectories compilation element in your application's Web.config, to define code directories that will be compiled into separate assemblies at build or run time... 使用应用程序的Web.config中的codeSubDirectories编译元素可以完成此技巧，以定义将在构建或运行时编译为单独程序集的代码目录。

Here's one approach: http://www.aspnetlibrary.com/articledetails.aspx?article=Use-C-Sharp-and-VB.NET-in-the-same-project . 这是一种方法： http : //www.aspnetlibrary.com/articledetails.aspx ?article= Use-C-Sharp-and-VB.NET-in-the-same-project 。

If you're already set up as described in the article and the problem is calling one App_Code sub-directory from another, you have to refactor a bit. 如果您已经按照本文中的描述进行了设置，而问题是从另一个目录中调用一个App_Code子目录，则必须进行一些重构。 You mention it's a service calling the other sub-directory. 您提到这是调用另一个子目录的服务。 Consider moving the service's code-behind to the same directory as its .asmx. 考虑将服务的代码后移到与其.asmx相同的目录中。 That way, it can use code from anywhere in App_Code. 这样，它可以在App_Code中的任何位置使用代码。 If your service is in the wrong language for the project, you'll have to re-write it. 如果您的服务使用的项目语言错误，则必须重新编写。

Maybe consider translating your VB code into C#? 也许考虑将您的VB代码转换为C＃？ This has the added benefit of making your project more consistent and maintainable. 这具有使您的项目更加一致和可维护的附加好处。