we are somewhat out of luck here, I'm afraid. By default WinDbg doesn't support debugging of managed code natively - at least not in its public releases. See explanation here: No CLR support in the latest debugger release
. The only WinDbg release really supporting it was version 220.127.116.11 which was mistakenly made public. Maybe you can still find it somewhere. If so, you'll be able to see call stacks with functions names, source code information, and so on in almost the same way as you see it for C++ applications.
To keep it short: You can use WinDbg to obtain some extra information for managed applications via its SOS or SOSEX extension. But in order too turn it into a really useful debugger for manged applications stick to WinDbg version 18.104.22.168
I hope this helps, RK