How to sort a list of a custom class by a variable in that custom class? c#

Question

I was wondering how I would sort this list of mine. Say i have class,

public class Foo
{
     public float bar;
}

And say I have list

List<Foo> sortedList = new List<Foo>();

And I want to sort Foo by its variable bar. I am pretty sure i should use the linQ statement orderby, but i cant figure out how to sort by a variable in a class.

Answer 1

Sort a list by calling OrderBy. Note this return an IEnumerable<T> to you will have to call ToList() to get a list again:

var list = new List<Foo>();
var sortedList = list.OrderBy(foo => foo.bar).ToList();

Answer 2

One option:

var sorted =
        from foo in sortedList 
        orderby foo.bar ascending
        select foo;

Or:

var sorted = sortedList.OrderBy(foo => foo.bar);

Answer 3

This is how I am doing it:

private List<ItemTotalsAcrossMonths> _itemTotalsAcrossMonthsList;
. . .
_itemTotalsAcrossMonthsList = _itemTotalsAcrossMonthsList.OrderByDescending(x => x.TotalPurchases13).ToList();

I'm simply assigning the results of the sort back to the generic list; you need the "ToList()" at the end.