What is the difference between the 3 catch block variants in C# ( 'Catch', 'Catch (Exception)', and 'Catch(Exception e)' )?

Question

In C#, what is the difference Between \'Catch\', \'Catch (Exception)\', and \'Catch(Exception e)\' ?

The MSDN article on try-catch uses 2 of them in its examples, but do

Answer 1

In short...

Catch without a parameter will receive any exception but provide no means to address it.

Catch (Exception) will essentially do the same thing, because you've specified the root Exception type. As opposed to Catch (IOException) which would only catch the IOException type.

Catch (Exception ex) catches all exceptions and provides a means to address it via the ex variable.

Read more: http://msdn.microsoft.com/en-us/library/ms173160.aspx