dynamically create lambdas expressions + linq + OrderByDescending

Question

how can I create a dynamic lambda expression to pass to use in my orderby function inside linq?

I basically want transform queryResults.OrderByDescending();

Answer 1

See Dynamic LINQ

Alternately, you can use a switch statement, Reflection or the dynamic type in C# 4 to return the value based on a supplied field name.

This has also been done to death previously