sort a List<int> in c# ignoring the sign -

i have list below var initial = new list { 2, 5, 6,-1, -3, -4 };

expected output {-1,2,-3,-4,5,6} =>(sort given list ignoring -ve sign not removing them in result.)

my attempt solve

            var initial = new list<string> { 2, 5, 6,-1, -3, -4 };             var dummylist = initial.findall(x => x < 0);              initial .removeall(x => dummylist.contains(x));              foreach (var e in dummylist)             {                 initial .add(e * -1);             }              initial.sort();              foreach (var e in dummylist)             {                 var index = initial.findindex(x=>x==(e*-1));                 initial.removeat(index);                 initial.insert(index, e);             } 

can give better solution this. https://dotnetfiddle.net/gcd1i1 thanks!

you can pass comparison sort method, compare using absolute value:

list.sort((a, b) => math.abs(a).compareto(math.abs(b))); 

or using linq:

list = list.orderby(x => math.abs(x)).tolist();