Catch a specific exception

Hi All,

I am using VS 2013 to create my windows application. In my application in a class I am firing sql query which is been enclosed in the try catch block. I have written a specific catch  for SQLException. Now I have a separate treatment for collation conflict error. So I have a separate function that should be executed only if the exception is due to collation conflict.
How I can separate out the collation conflict exception in sql exception. Is there anything? May be something like errorNo or something else.

Regards,
Girish