I wanna use the C# code file in VB.Net project Which is windows based application. But that C# class is not using in VB.NET application. How Can I perform this task.
Thanks
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I don't quite understand your question. Do you want to include the C# file as a resource (like you would do with an image or XML file for example)?user108816– user1088162010-02-08 09:13:20 +00:00Commented Feb 8, 2010 at 9:13
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I have a C# file as Data Access Layer and I wanna use that in my vb.net windows application. I know how to use different languages classes in asp.net. But I am unable to use in windows applicaton.Deepak– Deepak2010-02-08 09:24:58 +00:00Commented Feb 8, 2010 at 9:24
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4 Answers
It is very simple to combine your VB.net & C#.net project.
Step1- Add projects which you wanna combine to a single solution.
Step2- Within any one project VB/C# in which you want to call classes from other language project "Goto- Add Reference- Projects" and select the other project which will be automatically displayed.
Step3- After adding the reference just add "Imports (in VB)" or "using (in C#)" statements to your code.
Step4- bingooo!!! now you can use your VB/C# classes in another language.
(tip: You can go only in one direction here i.e. either you can use your C# classes in VB.net or vice versa.)
All the best
1 Comment
Nepaluz
I'll only clarify on steps 1 & 2 - First add C# project to your VB solution (via solution explorer) then from the VB project's properties, add a reference to the project. You can then access the class public methods directly or via a namespace if any (and they'll be compiled into the code!)
Compile the C# class in it's own C# class library (DLL) and then in your VB project, add a reference to the C# DLL. You can then use the class in your VB project.
If, however, you want to include the source code of the C# class in your VB project then you will have to convert the class from C# to VB. There are various methods of doing this, such as the online tool Convert C# to VB.NET
6 Comments
Deepak
I don't want to make library because that is a single class.
Adam Ralph
@Deepak - I have added the second paragraph in response to your comment
Deepak
Thanks, I have converted that code and it is also running but As well as we can do in ASP.NET so I want to use this like web application reference.
Adam Ralph
@Deepak - sorry I don't understand the last part of your comment
Deepak
I meant to say as we get reference of different language class file in asp.net to put it in APP_code's sub directory and do configuration in web.config's compilation tag. AS like can we do in windows application by any technique?
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You can also add the reference for an executable, if it is a .NET assembly. So just compile your C# project and add it as reference into your VB project.
2 Comments
Deepak
Thanks,I know this thing. But As we use vb.net individual class in C# project of ASP.NET. Then we put it in APP_Code's Child Directory and Specify it in web.config's compilation->codeSubDirectories tag. Same I wanna use single class of C# to vb.net windows application.
Simon Linder
Well then I don't think that you can do it, except for web projects. I think you have to reference some kind of assembly. How about adding a new C# project into your solution and just add your existing .cs file, compile it as Dll and add the reference.
It is possible, check this: http://bytes.com/topic/net/answers/49259-mixing-vb-net-c-same-project
However, it is possible to use different languages in a single project. You may need to write command line build file to build the project. In .NET framework SDK, there is one sample on it. You could access it in C:\Program Files\Microsoft Visual Studio .NET\FrameworkSDK\Samples\Technologies\CrossDevLan guage.
This sample demonstrates the use different development languages in a single project. This sample creates two assemblies. The first is a library or DLL assembly that defines a simple base class written in managed extensions for C++. The second assembly is an executable assembly that defines three derived classes written in C#, VB, and IL (Intermediate Language). These types derive from each other and ultimately from the base class written in managed C++. Finally, the executable creates instances of each of the derived types and calls a virtual method for each. The .NET Framework is an environment where various developers can work together seamlessly while developing in their language of choice.
