Can I use my old c#-libraries with WinJS?

Question

I have some old c#-libraries. Is it possible to use them in a browser application? Can I use them with the JavaScript-Object for example?

Thanks

Answer 1

You probably will be able to do that, but it will require some work from you.

To use the library, create a project whose output type is "WinMD file" (either new one, or change the library you have). In this project, all public types and their non-private members have to adhere to some WinRT rules.

For example:

• classes should be sealed (with exceptions for GUI controls)
• custom types may not be generic
• most generic types from the framework may not be used, with the exception of some collection interfaces

Answer 2

Yes you can. WinJS is built on top of WinRT which has a "translating layer" from any (supported) platform language. So you definitely should be able to use any "old" C# libraries in your code written in JavaScript in WinJS.