Can you sort Typed DataSet DataTables with Linq OrderBy?

Question

I have a Typed DataSet DataTable which inherits TypedTableBase, which in turn implements IEnumerable. I can\'t seem to get this to wo

Answer 1

Linq extension methods do not alter the source enumerable.

var numbers = new int[]{1,2,3};
var reversed = numbers.OrderByDescending(x=>x);
foreach(var number in reversed)
  Console.Write(number); // 321
foreach(var number in numbers)
  Console.Write(number); // 123

If you want to sort a DataTable, you should be using DataViews. You create a view on your DataTable, then apply a Sort or Filter to it, then bind against it. Keep in mind DataSets are an older technology and not quite up to date on the latest and the greatest. A "newer" approach would be to use the Entity Framework.