Hi,
How does the .NET compiler optimize it's code?

I have to do searches by a property in a SortedList with a key that is not
the property I have to make my search on.... Is there a performance
difference (in release or debug mode) between those listings? even if the
performance difference is monimal, I want to know which one is best or if
they end up being the same optimized code.

Listing 1:
SortedList<int, Thing> MyThings;
...
...
foreach (Thing TheThing in MyThings)
{
   if (TheThing.StringProperty == SomeOtherString)
  {
       // Do something
   }
}

Listing 2:
SortedList<int, Thing> MyThings;
SortedList<int, string> MyThingsStringProperty;
...
// Fill the MyThingsStringProperty once at the beginning and from time to
time when it changes (not very often)
...
...
foreach (string StringProperty in MyThingsStringProperty)
{
   if (StringProperty == SomeOtherString)
   {
       // Do something
   }
}

Thanks

ThunderMusic