Using lambda expression in place of IComparer argument

If you’re on .NET 4.5, you can use the static method Comparer<aClass>.Create.

Documentation: Comparer<T>.Create Method .

Example:

var x = someIEnumerable.OrderBy(e => e.someProperty, 
    Comparer<aClass>.Create((x, y) => x.someProperty > y.SomeProperty ?  1 : x.someProperty < y.SomeProperty ?  -1 : 0)
    );