interoperability in .net

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Hi,
Assume that I have library file written in C#, which has 2 methods. As we know C# is case sensitive language. We can write two methods with same name. For eg.

Class MyClass
{
   public int Mymethod()
   {
     return 1;
   }

   public int mymethod()
   {
     return 2;
   }
}

If I want to use this library file into my vb.net project, Will it allow me to that?
How come .net interoperability will be achieved as if VB.NET is not case sensitive?
I think compiler will put some code or we have to specify some parameter while compiling library file. I not sure about my answer. Please clear my doubt.

Thanks,

Posted 29-Jul-11 8:49am

dalbhide bipin

Updated 29-Jul-11 9:49am

Kschuler

v2

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2 solutions

Solution 1

Yes you can use a C# class in VB.Net. This can be achieved because all .Net languages ultimately target the Common Type System.
Read more about language interoperability here[^].

Posted 29-Jul-11 9:06am

Abhinav S

Updated 29-Jul-11 9:10am

v2

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TRK3 · Accepted Answer · 2011-07-29T12:12:00

Actually, you are right, that will cause a problem.

If you follow the link that Abhinav S gave you, you'll see another link to:

http://msdn.microsoft.com/en-us/library/12a7a7h3(v=vs.71).aspx[^]

Which gives the Common Language Specification -- basically the set of rules you must follow in order for your class to be guaranteed to interoperate with other .NET languages.

In particular it states:

"Characters and casing: ...For two identifiers to be considered distinct, they must differ by more than just their case."

and:

"Uniqueness: All names within a CLS-compliant scope must be distinct..."

So, basically the class you propose would not be CLS-compliant and therefore would not be interoperable with other .NET languages. The documentation does not guarantee what will happen if you try to do that. (Hopefully you'd end up with an intelligible error message somewhere along the way.)