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Asked: 2026-05-12T06:13:51+00:00

I am currently reading Pro LINQ c# 2008, and in page 87 the guy

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I am currently reading Pro LINQ c# 2008, and in page 87 the guy says OrderBy and OrderByDescending are stable. But he says exactly the opposite in page 96. It looks to me as he is referring to exactly the same functions, so I don’t get it. Are they stable or not?

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  1. Editorial Team

    Yes, they’re definitely stable. I picked up the same error in my review of the book.

    Joe responded to that bit of my review with this:

    Just for your reader’s knowledge, the
    ordering is now specified to be
    stable. Initially it was unstable, and
    was later changed to be stable but I
    was told it would be specified to be
    unstable, but apparently at some
    point, the specification was changed
    to be stable. My book was updated but
    apparently I missed a spot.

    So yes, it was a mistake.

    Overall it’s a reasonably accurate book. (There are a few inaccuracies which are due to MSDN being inaccurate, but that’s fairly easy to forgive.) There are far worse around 🙂

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