What does page?1 does specificely

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public ActionResult commenter(int? page)
       {
           List<comment> c = db.comments.ToList();
           int pageSize = 3;
           int pageNumber = (page ?? 1);
           return View(c.ToPagedList(pageNumber, pageSize)); ;
       }

This is the code for paging in mvc

Posted 17-Jun-14 19:10pm

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Sergey Alexandrovich Kryukov 18-Jun-14 1:40am

Not a valid question. Showing a fragment of the code taken from who-knows-where does not mean anything. (If it was your code, you would probably know your intention.) This is not a productive way of getting some knowledge. Write code instead of searching of some solution. If you do something different, remember that this site is for software developers.
—SA

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phil.o · Answer 1 · 2014-06-17T19:40:00

Solution 1

'??' is the null coalesce operator.
It means that the value of the 'page' variable is returned, unless it is null; if page is null, 1 will be returned.

?? Operator (C# Reference)[^]

Posted 17-Jun-14 19:40pm

phil.o