Question

Is there any case where catch block is skipped when an Exception is raised
say

try 
{
  some code
}
catch(Exception ex)
{
  some code
}

I am using Exception class as it catches all the Exceptions.

Answer 1

You might have problems with StackOverflowException (see List of exceptions that CAN'T be caught in .NET)

There is another family of cases, specifically when the thing thrown wasn’t an Exception, but this is only if you are either in 1.1, or don’t have automatic exception wrapping enabled (it is enabled by default from 2.0) – it is theoretically possible for C++ to throw anything (not just an Exception), so if your “some code” calls into some C++ that throws, say, a string, then in theory you could miss it.

In reality this is rarely (if ever) a real problem:

• the automatic wrapping is enabled by default
• most C++ code talking to .NET throws Exception (or a subclass) to be well-behaved

In such cases, a catch { ... } will work to intercept that something was thrown, but won’t tell you what happened.