ASP.NET - 如何从正在编译到另一个项目的项目中停止类/ dll

I have one of those annoying problems where something that used to work stopped working. Check out this code:

我有一个令人烦恼的问题,那些曾经工作的东西停止工作。看看这段代码:

Assembly _abc_assembly = Assembly.LoadFile(“c:\junk\abcabstract\bin\abc.dll”);

ABC.ContentAttribute attribute;
attribute = (ABC.ContentAttribute)_abc_assembly.CreateInstance("ABC.TextAttribute");

ContentAttribute is defined in the dll. Obviously, this should work. You should be able to cast an object to itself.

ContentAttribute在dll中定义。显然,这应该工作。您应该能够将对象强制转换为自身。

But it produces this error:

但它产生了这个错误:

alt text http://www.yart.com.au/*/compile1.png

替代文字http://www.yart.com.au/*/compile1.png

This bug is discussed here http://www.yoda.arachsys.com/csharp/plugin.html which is how I got even this far. From this post I gather that the class ContentAttribute is somehow ending up in ABC.DLL and the website project's DLL.

这个bug在这里讨论http://www.yoda.arachsys.com/csharp/plugin.html这就是我到目前为止的方式。从这篇文章我收集到,ContentAttribute类以某种方式结束于ABC.DLL和网站项目的DLL。

The website project I have looks like this:

我看到的网站项目如下:

alt text http://www.yart.com.au/*/compile2.png

替代文字http://www.yart.com.au/*/compile2.png

Now ContentAttribute is not in this project, it is in the dll ABC.DLL. You can see that as I have expanded every branch and the file ContentAttribute.cs is not there.

现在ContentAttribute不在这个项目中,它在dll ABC.DLL中。您可以看到,因为我已经扩展了每个分支,并且ContentAttribute.cs文件不存在。

Yet somehow it is ending up in the dll for the website creating a duplicating reference. ContentAttribute is somehow ending up in ABC.DLL and the website project's DLL.

然而不知何故,它最终在网站的dll中创建了一个重复的引用。 ContentAttribute以某种方式结束于ABC.DLL和网站项目的DLL。

Can anyone tell me:

谁能告诉我:

a) Why is ContentAttribute in two dlls? I didn’t think including a dll in a project forced that code into the projects DLL.

a)为什么ContentAttribute在两个dll中?我没想到在项目中包含一个dll强制将代码强加到项目DLL中。

b) How to stop it from happening?

b)如何阻止它发生?

By the way, I definitely don't want to change the website project into a website application if I can avoid it.

顺便说一下,如果我能避免的话,我绝对不想将网站项目改为网站应用程序。

Notes:

Deleting the temporary ASP.NET files does not work. As soon as I compile my website project they get recreated.

删除临时ASP.NET文件不起作用。一旦我编译我的网站项目,他们就会重新创建。

alt text http://www.yart.com.au/*/compile3.png

2 个解决方案

#1

It's a namespace collision. It doesnt know which ContentAttribute to use since it is finding 2 in different namespaces/assemblies.

这是命名空间冲突。它不知道要使用哪个ContentAttribute,因为它在不同的命名空间/程序集中找到2。

You may have an old copy of the DLL named differently. Delete your temporary ASP.Net directories and recompile.

您可能有一个名为不同的旧DLL副本。删除临时ASP.Net目录并重新编译。

To avoid in the future:

为了避免将来:

Use fully qualified names for your objects if you need to get it to work.

如果需要使用它,请为对象使用完全限定名称。

ABC.ContentAttribute ca = new ABC.ContentAttribute();

or if casting do the same

或者如果铸造做同样的事情

ABC.ContentAttribute ca =(ABC.ContentAttribute)ca2;

#2

ABC.DLL is referenced by your website and it becomes part of it (it is in Bin folder). ASP.NET compiles your website and ABC.DLL is placed in temp location (C:\Windows...\Temporary ASP.NET Filse...). It gets loaded by ASP.NET automatically. You are trying to load ABC.DLL manually from different location (D:\junk\abcabstract\bin\abc.dl). Two assemblies do not match hence you get the error.

ABC.DLL由您的网站引用,它成为它的一部分(它在Bin文件夹中)。 ASP.NET编译您的网站,ABC.DLL位于临时位置(C:\ Windows ... \ Temporary ASP.NET Filse ...)。它自动由ASP.NET加载。您正尝试从不同位置手动加载ABC.DLL(D:\ junk \ abcabstract \ bin \ abc.dl)。两个程序集不匹配,因此您收到错误。

To stop this from happening you have to rethink your plugin architecture I guess. Can you give more information?

为了阻止这种情况发生,你必须重新考虑你的插件架构。你能提供更多信息吗?

Update: Why don't you fix it like this:

更新:你为什么不这样解决它:

// Assembly _abc_assembly = Assembly.LoadFile(“c:\junk\abcabstract\bin\abc.dll”);
// ContentAttribute attribute;
// attribute = (ContentAttribute)_abc_assembly.CreateInstance("ABC.TextAttribute");
ContentAttribute attribute = new ContentAttribute();

#1