Parameter-driven ASC/DESC Sort?

Without dynamic SQL I want to achieve the following goal:

DECLARE @SortDesc bit = 1;
SELECT * FROM Sales.SalesOrderHeader
ORDER BY SalesOrderID CASE WHEN @SortDesc = 1 THEN DESC ELSE ASC END;

/*
Msg 156, Level 15, State 1, Line 3
Incorrect syntax near the keyword 'CASE'.

*/

I know it can be done with dynamic SQL.  I wonder if there is a static SQL solution. Thanks.

Kalman Toth Database & OLAP Architect sqlusa.com
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