Static Constructor throws exception before called.

[Fr33dan]

Hi,

Long Version with potentially superfluous details:
I have a C# project that I use as a library for multiple programs (The point being it has be tested to and functioned properly). However with my latest program it has been giving me problems. From a static constructor on a custom form I call a static methods of a Config class. This is when I get a TypeInitalizationException from the Config class. The inner exception is a SecurityException which according the stack trace is from "System.Reflection.Assembly.get_Location()" called from Config's constructor. I have never heard of this method and don't call it in Config's constructor (do use other parts of Reflection.Assembly). The weirdest part is that if I put a breakpoint in the first line of the constructor the exception is thrown before it can get there.

Short Version:
A static constructor is throwing an error from an System.Reflection.Assembly method I don't call and a breakpoint of the constructor on the first line isn't reached.

I can post code but there is alot of it and I'm not entirely sure where the problem code is.

[Christian Binder]

Maybe the assembly which contains the Config-class references to another assembly which can't be found. Does the TypeInitializationException tell you which class it couldn't find?

I think this exceptions are thrown when the class (Config) is loaded, so it's before the static-ctor is called.

[Plater]

I had trouble when I would do the following:

MyCustomClass Myobj=null;
//stuff
Myobj=new MyCustomClass();
 

And I would get the TypeInitalizationException on the line: MyCustomClass Myobj=null;
It turned out that if a failure happens durring the creation of the class like "footprint"(creating the Type, not the instance) I was getting that error.
In my class I had something like:

private int _startpoint=2;
private string _myname=Assembly.(something)("Name");
 

Or something of the sort and THOSE class were failing and giving me the TypeInitalizationException.

Maybe you can peek through that?
Set a breakpoint at the first "thing" in your class, not the constructor, but the first member variable or whatever, and use F10 to step on single statements until you get the exception?

[Fr33dan]

Sorry for the long delay (I only work on this project 2 days a week). That was a push in the right direction. The error was on a static variable that I wrote before the static constructor and forgot about (And thus wasn't checking the initialization of). Now I just need to figure out why this line is throwing a SecurityException:

private static string defaultsLocation = (System.Reflection.Assembly.GetEntryAssembly() == null? null: System.Reflection.Assembly.GetEntryAssembly().Location.Replace(System.Reflection.Assembly.GetEntryAssembly().GetName().Name + ".exe", ""));

Since the problem that I started the thread with is solved I will mark your answer as the correct one and start a new thread if I can't figure it out.

Thanks