Channel 9 Forums - Tech Off - Mix VB.NET & C# not possible? http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png Channel 9 Forums - Tech Off - Mix VB.NET & C# not possible? http://channel9.msdn.com/Forums Channel 9 keeps you up to date with the latest news and behind the scenes info from Microsoft that developers love to keep up with. From LINQ to SilverLight – Watch videos and hear about all the cool technologies coming and the people behind them. http://channel9.msdn.com/Forums en Sun, 19 May 2013 15:12:26 GMT Sun, 19 May 2013 15:12:26 GMT Rev9 24 -24 -1 Tech Off - Mix VB.NET & C# not possible? I thought that in VS2005 you could have .cs and .vb files in the same project?

I just tried with an asp.net project and it doesn't work!
It says that the two files use a different language, which is not allowed.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/168886#168886 Mon, 20 Mar 2006 16:34:00 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/168886#168886 dotnetjunkie 24 http://channel9.msdn.com/Niners/dotnetjunkie/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? You can mix C# and VB projects in the same solution, but I don't think you can mix them within a project.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/857c989ecd8f408b8d809dea0139f0d3#857c989ecd8f408b8d809dea0139f0d3 Mon, 20 Mar 2006 17:03:39 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/857c989ecd8f408b8d809dea0139f0d3#857c989ecd8f408b8d809dea0139f0d3 AndyC 24 http://channel9.msdn.com/Niners/AndyC/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? You can't have C# and VB.Net files within the same project.

seb
http://sgomez.blogspot.com

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/c98a7d6fa433433285029dea0139f0fe#c98a7d6fa433433285029dea0139f0fe Mon, 20 Mar 2006 18:57:18 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/c98a7d6fa433433285029dea0139f0fe#c98a7d6fa433433285029dea0139f0fe sgomez 24 http://channel9.msdn.com/Niners/sgomez/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? You can't have App_Code files with both VB and C#, but you can have one VB ASP.NET page and one C# ASP.NET page in the same project.

Thanks,
-Dan

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/4e01f0ccf9d049fbb2c79dea0139f128#4e01f0ccf9d049fbb2c79dea0139f128 Mon, 20 Mar 2006 19:33:13 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/4e01f0ccf9d049fbb2c79dea0139f128#4e01f0ccf9d049fbb2c79dea0139f128 Dan Fernandez 24 http://channel9.msdn.com/Niners/Dan/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? Dan: So it's not possible to add a normal C# class to a VB.NET web project?  A page is a class as well, so that's kind of strange.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/99c51909e52e403290519dea0139f151#99c51909e52e403290519dea0139f151 Tue, 21 Mar 2006 01:18:03 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/99c51909e52e403290519dea0139f151#99c51909e52e403290519dea0139f151 dotnetjunkie 24 http://channel9.msdn.com/Niners/dotnetjunkie/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? I think it's because ASPX pages are compiled on the fly, whereas executables and libraries are compiled by their corresponding compilers, csc.exe in C#'s case.

I guess technically someone could write a compiler that puts VB and C# together, but that'd defeat .NET's goal of being language independent, since that compiler would have to accomodate for every language out there.

There's more than 50 .NET languages out there right now, and ASPX supports only two of them.

It's just modularity on a different level, ASPX being arguably more practical but definitely less holistic.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/558f370890684e69a9ad9dea0139f17b#558f370890684e69a9ad9dea0139f17b Tue, 21 Mar 2006 02:20:02 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/558f370890684e69a9ad9dea0139f17b#558f370890684e69a9ad9dea0139f17b reinux 24 http://channel9.msdn.com/Niners/reinux/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? reinux: I was not talking about executables or libraries but a simple class file or webservice in a web project!

The files in your App_Code directory are compiled on the fly as well, just like the pages, so it must be an architectural limitation!

It seems that everything in App_Code is compiled together in one assembly???!!

Can someone from the team tell a bit more about the exact limitations / architecture and possible solutions?

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/30d1a9fe85544737875e9dea0139f1a5#30d1a9fe85544737875e9dea0139f1a5 Tue, 21 Mar 2006 03:42:29 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/30d1a9fe85544737875e9dea0139f1a5#30d1a9fe85544737875e9dea0139f1a5 dotnetjunkie 24 http://channel9.msdn.com/Niners/dotnetjunkie/Discussions/RSS Tech Off - Mix VB.NET & C# not possible?
dotnetjunkie wrote:
reinux: I was not talking about executables or libraries but a simple class file or webservice in a web project!

The files in your App_Code directory are compiled on the fly as well, just like the pages, so it must be an architectural limitation!

It seems that everything in App_Code is compiled together in one assembly???!!

Can someone from the team tell a bit more about the exact limitations / architecture and possible solutions?

Ahh sorry, I misread.

Weird... I always thought you could do it.

I can see it being a limitation of CodeDom's architecture though, since CodeDom can spit out assemblies but it can't spit out just raw objects.

There'd be ways to get around it, I'm sure, like ILMerge does, but I guess they figured it wouldn't be worth the trouble Sad

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/5b5532bc9bba4faa874f9dea0139f1cf#5b5532bc9bba4faa874f9dea0139f1cf Tue, 21 Mar 2006 04:23:26 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/5b5532bc9bba4faa874f9dea0139f1cf#5b5532bc9bba4faa874f9dea0139f1cf reinux 24 http://channel9.msdn.com/Niners/reinux/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? Maybe compile one as a dll with a nice Interface(s) and use it in the other project through a reference?

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/8a94194623ba438b86869dea0139f1f8#8a94194623ba438b86869dea0139f1f8 Tue, 21 Mar 2006 05:31:29 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/8a94194623ba438b86869dea0139f1f8#8a94194623ba438b86869dea0139f1f8 JohnAskew 24 http://channel9.msdn.com/Niners/JohnAskew/Discussions/RSS Tech Off - Mix VB.NET & C# not possible?
dotnetjunkie wrote:
It seems that everything in App_Code is compiled together in one assembly???!!

That is correct. This assembly is referenced when compiling the pages.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/3691acdebc7044278d4a9dea0139f221#3691acdebc7044278d4a9dea0139f221 Tue, 21 Mar 2006 17:49:31 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/3691acdebc7044278d4a9dea0139f221#3691acdebc7044278d4a9dea0139f221 Sven Groot 24 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? Thanks, that explains why it can't be done.
I hope that people from the team are reading this, as I think this would be a nice improvement for vNext!

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/b6772ad8dc20467e8c509dea0139f249#b6772ad8dc20467e8c509dea0139f249 Tue, 21 Mar 2006 22:34:06 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/b6772ad8dc20467e8c509dea0139f249#b6772ad8dc20467e8c509dea0139f249 dotnetjunkie 24 http://channel9.msdn.com/Niners/dotnetjunkie/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? Um... Yes you can use both VB.NET and C# within your App_Code folder!

On my blog I posted on how to do just that. It's really easy!

http://pietschsoft.com/Blog/Post.aspx?PostID=1287

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/57a814e16d0f4c6a899c9dea0139f272#57a814e16d0f4c6a899c9dea0139f272 Thu, 08 Jun 2006 21:11:35 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/57a814e16d0f4c6a899c9dea0139f272#57a814e16d0f4c6a899c9dea0139f272 Chris Pietschmann 24 http://channel9.msdn.com/Niners/CRPietschmann/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? I am having the same type problem, but with a non web project. I would like to not have to rewrite the C# code, but want to use it in my VB.net project.  Any suggestions on if this is possible?

 

Kquad

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/07e58eb7aae644ffa3449dea0139f2b4#07e58eb7aae644ffa3449dea0139f2b4 Sun, 01 Oct 2006 23:22:31 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/07e58eb7aae644ffa3449dea0139f2b4#07e58eb7aae644ffa3449dea0139f2b4 kquad 24 http://channel9.msdn.com/Niners/kquad/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? why not just build a dll and use it??

simple to do, works everytime.


no magic, just build a class-lib project and then ref-the dll in another project.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/dfa9716a4bfc4a329c8d9dea0139f2dc#dfa9716a4bfc4a329c8d9dea0139f2dc Mon, 02 Oct 2006 02:23:21 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/dfa9716a4bfc4a329c8d9dea0139f2dc#dfa9716a4bfc4a329c8d9dea0139f2dc figuerres 24 http://channel9.msdn.com/Niners/figuerres/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? csc.exe /t:module and al.exe are your friends Big Smile

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/cb66a05a696d4559821c9dea0139f305#cb66a05a696d4559821c9dea0139f305 Mon, 02 Oct 2006 04:26:37 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/cb66a05a696d4559821c9dea0139f305#cb66a05a696d4559821c9dea0139f305 Andrew Webber FX 24 http://channel9.msdn.com/Niners/Andrew Webber FX/Discussions/RSS Tech Off - Mix VB.NET & C# not possible?
dotnetjunkie wrote:
I thought that in VS2005 you could have .cs and .vb files in the same project?
you can have files in different languages in the same project, if you are using C++/CLI, at least in Beta 1, 2 you could.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/b10b4868c7fd492fae7f9dea0139f32e#b10b4868c7fd492fae7f9dea0139f32e Mon, 02 Oct 2006 14:27:54 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/b10b4868c7fd492fae7f9dea0139f32e#b10b4868c7fd492fae7f9dea0139f32e Ion Todirel 24 http://channel9.msdn.com/Niners/Ion Todirel/Discussions/RSS Tech Off - Mix VB.NET & C# not possible? We can mix up both C# and VB.Net in App_Code. For that purpose we have to perform these two steps:
1. Create two subdirectories in App_Code folder one each for C# and VB.Net. Let suppose i have created directory named "VBCode" for VB.Net and "CSCode" for C#.
2. Modify the complition section of web.config file like this

<compilation>
     <codeSubDirectories>
            <add directoryName="VBCode"/>
            <add directoryName="CSCode"/>
      </codeSubDirectories>
</compilation>

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/f833dccf31e04d5d934a9dea0139f371#f833dccf31e04d5d934a9dea0139f371 Fri, 02 Nov 2007 11:04:49 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/f833dccf31e04d5d934a9dea0139f371#f833dccf31e04d5d934a9dea0139f371 aftab 24 http://channel9.msdn.com/Niners/aftab/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible? You can also make a class lib project (compiles to dll) and put the respective code in their own projects in the bin directory of website. I highley recommend this approach. I am not sure I see the benifit of using app_code except in really trivial cases or pages like global.ASAX. I would avoid it. dlls make utility code more distributable. (of course I do not condone dll spam, making yet another dll)

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/a4cd7b2770434e7ba3589dea0139f39c#a4cd7b2770434e7ba3589dea0139f39c Fri, 02 Nov 2007 13:31:04 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/a4cd7b2770434e7ba3589dea0139f39c#a4cd7b2770434e7ba3589dea0139f39c odujosh 24 http://channel9.msdn.com/Niners/odujosh/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible? as the explanation above, you can mix C# and VB.Net code together by using the correct configuration. Mr. Dino Esposito's book Programming Microsoft ASP .Net 2.0 Core Reference describes this as well. BUt you have to have both VB.Net and C# compiler installed for this to work.

the code in the app_code does get compiled on-the-fly. Actually, what happens is the code in the app_code get copied to a temporary folder, classes based on the aspx page combined with code behind gets generated and placed also in the temporary folder. Each codes will be compiled by the appropriate compilers and then linked to each other and gets deployed to asp.net. You can see the generated code in the temporary folder. in my pc it is under C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/cfd168d5dc6c48e9882f9dea0139f3df#cfd168d5dc6c48e9882f9dea0139f3df Fri, 02 Nov 2007 14:12:35 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/cfd168d5dc6c48e9882f9dea0139f3df#cfd168d5dc6c48e9882f9dea0139f3df punkouter 24 http://channel9.msdn.com/Niners/punkouter/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible?
punkouter wrote:
BUt you have to have both VB.Net and C# compiler installed for this to work.
with .NET framework how could you not have them both?

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/11d2d72ba47a407db1519dea0139f408#11d2d72ba47a407db1519dea0139f408 Fri, 02 Nov 2007 14:57:50 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/11d2d72ba47a407db1519dea0139f408#11d2d72ba47a407db1519dea0139f408 Ion Todirel 24 http://channel9.msdn.com/Niners/Ion Todirel/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible? there are cases where we may not have C# and VB.Net compiler installed. the fact alone that we are developing on .Net Framework does not mean that we have those compiler installed. .Net Framework IS a framework afterall. It's a set of libraries where we develop on. FOr instance, If you installed visual web developer express, the distribution DOES include VB.Net and C# compiler. but if you only installed visual C# express, then you wont have the VB.Net compiler, yet, you can still develop using .Net Framework isn't it? With ASP.Net, given the proper settings,  I think it is possible to develop on other languages, such as IronPython or IronRuby, maybe C Omega and F#. As long those languages have compiler that targets CLR anything goes. That's what language independence all about.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/3a35eefadbba4d06bea99dea0139f433#3a35eefadbba4d06bea99dea0139f433 Fri, 02 Nov 2007 15:29:06 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/3a35eefadbba4d06bea99dea0139f433#3a35eefadbba4d06bea99dea0139f433 punkouter 24 http://channel9.msdn.com/Niners/punkouter/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible?
punkouter wrote:
there are cases where we may not have C# and VB.Net compiler installed. the fact alone that we are developing on .Net Framework does not mean that we have those compiler installed.
again, Microsoft .NET Framework contains a C# compiler (csc.exe) and a VB compiler (vbc.exe) you don't need to install the SDK or any IDE to have the compilers

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/70912603905541fbab289dea0139f45c#70912603905541fbab289dea0139f45c Fri, 02 Nov 2007 19:25:38 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/70912603905541fbab289dea0139f45c#70912603905541fbab289dea0139f45c Ion Todirel 24 http://channel9.msdn.com/Niners/Ion Todirel/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible? "JohnAskew--
Maybe compile one as a dll with a nice Interface(s) and use it in the other project through a reference? "

That would be the most likely thing to do. keeping both apart but talking to each other.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/f64b9253348f4a81875b9dea0139f49e#f64b9253348f4a81875b9dea0139f49e Fri, 02 Nov 2007 23:00:46 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/f64b9253348f4a81875b9dea0139f49e#f64b9253348f4a81875b9dea0139f49e MikeeeG 24 http://channel9.msdn.com/Niners/MikeeeG/Discussions/RSS Tech Off - Mix VB.NET &amp; C# not possible?
punkouter wrote:
there are cases where we may not have C# and VB.Net compiler installed.

The base framework comes with both compilers. You don't need anything else, not even the SDK. Everybody who has the .Net Framework has both the VB and the C# compiler.

]]> http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/0d87530c37704541841a9dea0139f4c7#0d87530c37704541841a9dea0139f4c7 Sat, 03 Nov 2007 11:56:46 GMT http://channel9.msdn.com/Forums/TechOff/168886-Mix-VBNET-amp-C-not-possible/0d87530c37704541841a9dea0139f4c7#0d87530c37704541841a9dea0139f4c7 Sven Groot 24 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS