c# - How get value of parameters in stacktrace

Question

I can get information about a parameter by StackTrace using something like this:

catch (Exception ex)
{
    var st = new StackTrace(ex);

    System.Reflection.ParameterInfo pi = st.GetFrame(0).GetMethod().GetParameters().First();
}

I want know how i get the value of parameter. Example:

If my method in stack trace was like:

void MyMethod(object value)

And the call was like:

MyMethod(10);

I want to get the value 10. How i do that?

Answer 1

There are two ways. The more powerful is the COM API for .NET Debugging. For example, arguments and local variables of function in the call stack are both accessible from ICorDebugILFrame. But this must be run from a separate process that is attached to your process as the debugger.

For in-process introspection, there's the Profiler API, which also can find information about function arguments. Look at the information about "shadow stacks".