Question

I want to convert these two query expression into dot notation

Q1

var x = from tbl in Person.Get(2, cat.Count)
        group cat[i] by i/10;

Q2

foreach(var a in x)
    string.Split("-", a);

How to do?

Answer 1

This is untested, but please see if this produces correct results for you –

var catList = Person.Get(2, cat.Count);
catList.GroupBy(c => catList.Indexof(c)/10).Select(a => a.Split("-", a))