CLR存储过程中的全局异常处理程序

I use C# and Sql Server 2008 and I have some try/catch blocks in my CLR Stored Procedure and these are caught. These are logged in a file and they return a code error and message using SqlPipe. These work fines. Now I need to do the same when I have some untrapped errors especially to have a trace in the log file!I use C# and Sql Server 2008 and I have some tr