Question

How select first 10 records, Then the next 10, Then the next 10, and so long as the array will not end.

Phrases = bannersPhrases.Select(x=>x.Phrase).Take(10).ToArray()

How get the next 10 records?

Answer 1

var total = bannersPhrases.Select(p => p.Phrase).Count();
var pageSize = 10; // set your page size, which is number of records per page

var page = 1; // set current page number, must be >= 1 (ideally this value will be passed to this logic/function from outside)

var skip = pageSize * (page-1);

var canPage = skip < total;

if (!canPage) // do what you wish if you can page no further
   return;

Phrases = bannersPhrases.Select(p => p.Phrase)
             .Skip(skip)
             .Take(pageSize)
             .ToArray();