我如何使用LINQ在组中拆分逗号分隔的字符串

Question

I have the string of comma separated ids like 1,2,3,4,5,6,7,8,9...... etc.

Please suggest how i can split them in group of "Quantity" means if Quantity=3 then group are (List) ["1,2,3"], ["4,5,6"], ["7,8,9"] etc.

Range of Quantity is from 1-75.

Answer 1

Try this:

var quantity = 3; 

yourList.Select((x, i) => new { Index = i, Value = x })
        .GroupBy(x => x.Index / quantity )
        .Select(x => x.Select(v => v.Value).ToList())
        .ToList();