How to sort Generic List Asc or Desc?
You can use .OrderByDescending(...) - but note that with the LINQ methods you are creating a new ordered list, not ordering the existing list.
If you have a List<T> and want to re-order the existing list, then you can use Sort() - and you can make it easier by adding a few extension methods:
static void Sort<TSource, TValue>(this List<TSource> source, Func<TSource, TValue> selector) { var comparer = Comparer<TValue>.Default; source.Sort((x,y)=>comparer.Compare(selector(x),selector(y)));}static void SortDescending<TSource, TValue>(this List<TSource> source, Func<TSource, TValue> selector) { var comparer = Comparer<TValue>.Default; source.Sort((x,y)=>comparer.Compare(selector(y),selector(x)));}Then you can use list.Sort(x=>x.SomeProperty) and list.SortDescending(x=>x.SomeProperty).