How can I dump all parameters of a stored procedure into an error log?

Currently in all our procedures we use the same template for error catching.  We use a function to store the error message, severity, state, and store procedure name into a log table.  This has helped us tremendously during testing and production but find it is still lacking.  When there is an issue in production, we need to sometimes track down a user and find out what data was entered to see what we missed/overlooked (it happens).  

We have a code snippet that shows us the list of parameters for any given stored procedure here:

SELECT 
    p.name AS Parameter,        
    t.name AS [Type]
FROM sys.procedures sp
JOIN sys.parameters p 
    ON sp.object_id = p.object_id
JOIN sys.types t
    ON p.system_type_id = t.system_type_id
WHERE sp.name = 'Insert_Order'

Select allOpen in new window

Now we need a way (maybe using dynamic sql?) to dynamically get the values of all the parameters and dump it into a string (@orderdate='1/1/99',@orderpurchasenumber='12345',@orderanything='something',etc)

Here is our current sql catch statement:

	BEGIN CATCH 
		DECLARE @ErrorMessage NVARCHAR(4000);
		DECLARE @ErrorSeverity INT;
		DECLARE @ErrorState INT;
		DECLARE @ObjectName NVARCHAR(100);

		SELECT 
				@ErrorMessage = ERROR_MESSAGE(),
				@ErrorSeverity = ERROR_SEVERITY(),
				@ErrorState = ERROR_STATE(),
				@ObjectName = OBJECT_NAME(@@PROCID); -- To get the current object name which raise the error 
							 
		RAISERROR(@ErrorMessage,@ErrorSeverity,@ErrorState); 
		
		ROLLBACK TRANSACTION 											
		--Log the Error
		EXEC dbo.spLog_Application_Error 'SYSTEM', @ErrorMessage, @ErrorSeverity, @ErrorState, @ObjectName --Added by Adriano
		
		SELECT -1		
	END CATCH 

Select allOpen in new window