CODEWITHSUNDEEP
c#visual-studiodebugging
IV.
IV.

Reputation: 1233

Debugging exceptions in type initializers

I have a static class with no static constructor, but many static members. I throw a TypeInitializationException when the class is first used.

I am breaking on CLR exceptions, and I have disabled 'Just My Code'.

The problem is that I only get this exception when this class is first used; I don't break at the failing static field initializer. I could certainly remove the static members until I find the culprit, but is there an easier way?

Does anyone have any tips for debugging static field initializations?

Upvotes: 6

Views: 3933

Answers (2)

SLaks
SLaks

Reputation: 887867

Click Debug, Exceptions, (or press Ctrl+D, E) and tell Visual Studio to break whenever any exception is thrown. It will then break when the InnerException is thrown, before it gets wrapped in a TypeInitializationException, and it will break on the line that threw the exception.

Alternatively, look at the InnerException's call stack and see which of your field s it matches.

Or, try setting a breakpoint on every static initializer; the last one hit is the one that threw the exception.

Upvotes: 15

JaredPar
JaredPar

Reputation: 755259

I would try the following

  • Disable Just My Code: Uncheck Tools -> Options -> Debugging -> Just my Code
  • Break on first chance exceptions: Debug -> Exception -> Check the thrown box for CLR exceptions

This should take you to the immediate place where the exception is occurring.

Upvotes: 2

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