Question

I have

List<string> strs;
double[] values;

where the values array contains the value of each of the string in strs list

Say strs={"abc","def","ghi"}
and values={3,1,2}

this means “abc” has value 3 and so on.

I wish to sort strs and values ordered by values, such that it becomes

strs={"def","ghi","abc"}
values={1,2,3}

Is there any easy way to achieve this?

Answer 1

The Array.Sort method has an overload that takes two arrays and sorts both arrays according to the values in the first array, so make an array out of the list:

string[] strsArr = strs.ToArray();

Then sorting them can’t be simpler:

Array.Sort(values, strsArr);

And then back to a list, if you need that:

strs = strsArr.ToList();