Use LINQ to move item to top of list

Question

Is there a way to move an item of say id=10 as the first item in a list using LINQ?

Item A - id =5
Item B - id = 10
Item C - id =12
Item D - id =1

In th

Answer 1

You can "group by" in two groups with Boolean key, and then sort them

var finalList= allCountries
                .GroupBy(x => x.id != 592)
                .OrderBy(g => g.Key)
                .SelectMany(g => g.OrderBy(x=> x.id ));