Have exactly the same issue here:
(http://www.dotnetnuke.com/Community/Forums/tabid/795/forumid/111/threadid/136089/scope/posts/Default.aspx)

Anyone found a solution (not having fun either :).
(http://www.dotnetnuke.com/Community/Forums/tabid/795/forumid/111/threadid/136089/scope/posts/Default.aspx)

Many thanks...!

 p.s.

My code is as below

<ComponentModel.DataObjectAttribute()> _ ' Not sure if this line is needed or not, doesn't work either way anyway
Public Class WebsiteDirectoryController

End Sub

End Sub

End Sub

End Function

 Hi all

 I am having the same problem but with ajax enabled or toolkit site. If I use a normal asp.net web site (Template) it works fine. I only have an App_Code folder.

wstevens@vodamail.co.za:

 Hi all

 I am having the same problem but with ajax enabled or toolkit site. If I use a normal asp.net web site (Template) it works fine. I only have an App_Code folder.

 

I was also haveing the same issue, for about 10 hours i was trying to figure out why my app_code wasn't working like before (ajax enable website). So after banging my head reading millions of post i finally came across this, then i got an idea. I put a .vb class file in the root directory, i was able to access my classes. I like to keep the project clean, so i added a folder called classes(which is what i would put all my stuff in that normally i put in app_code) and added in my class file. without a problem the fricken thing worked. big sye of relief. So i figured i would just publish it, just to see what VS does with the folder. Sure enough it musta put in in a DLL, cause the damn thing worked.

I hope this solves peoples problems cause i fustraded me like crazy

ryurdiga 

I believe when you add a class in App-Code it somehow feels the class as a content file. So if you see the properties of the file and change the build action to compile then I believe it would work.

Cheers,

Avy

All you need to do is to complie the project and then you will see your classes in the drop down.

I also tried all suggestions in this forum. Finally, I came up with a following.
All you need to do is to change the configuration within the web.config file:

Find the following directive: 

<codeSubDirectories>
        <add directoryName="HTML" />
        <add directoryName="whatever_directory_that_is_causing_troubles" />
</codeSubDirectories>

 and add the line that I marked in bold.

Then "save all" and compile the project.

 Hi,

 And what should that directory be then, an example would be nice.

Please take a look into your error. It should be right there.

Nur 

I had the same problem. Here is the solution. Enjoy!

http://adefwebserver.com/DotNetNukeHELP/DNN_Things4Sale/ThingsForSale3.htm

ryurdiga:

 

wstevens@vodamail.co.za:

 Hi all

 I am having the same problem but with ajax enabled or toolkit site. If I use a normal asp.net web site (Template) it works fine. I only have an App_Code folder.

 

 

I was also haveing the same issue, for about 10 hours i was trying to figure out why my app_code wasn't working like before (ajax enable website). So after banging my head reading millions of post i finally came across this, then i got an idea. I put a .vb class file in the root directory, i was able to access my classes. I like to keep the project clean, so i added a folder called classes(which is what i would put all my stuff in that normally i put in app_code) and added in my class file. without a problem the fricken thing worked. big sye of relief. So i figured i would just publish it, just to see what VS does with the folder. Sure enough it musta put in in a DLL, cause the damn thing worked.

 

I hope this solves peoples problems cause i fustraded me like crazy

 

ryurdiga 

Could you elaborate on what you describe here?  I know this was a long time ago but this sounds like a problem I am having now.  I have an AJAX web site that was working fine with my classes in App_code until I added the timer control (AJAX Extensions) then my project when compiled won't recognize my SessionHandler.vb class in the App_code folder.  Are you saying you added a folder (not asp.net folder) to the root of your project and then moved your classes into it and then your project recognized your classes?

Three steps to correct this whole problem.

1. Go ahead and create the folder App_Code.  Create the class files or add the class files that you want to compile as your business objects in your AJAX Web Application. 

2. Make sure the namespace in your class files is correct for each file.  Remove any ".App_Code" extensions.

3. Set each class file to "compile" in the properties for that class file.  You can see this option by clicking the class file, viewing the properties in the properties explorer window, and changing the Build Action dropdown list to "Compile."

Best of luck,

Matt