How do you get the index of the current iteration of a foreach loop?

Question

Is there some rare language construct I haven\'t encountered (like the few I\'ve learned recently, some on Stack Overflow) in C# to get a value representing the current iter

Answer 1

How about something like this? Note that myDelimitedString may be null if myEnumerable is empty.

IEnumerator enumerator = myEnumerable.GetEnumerator();
string myDelimitedString;
string current = null;

if( enumerator.MoveNext() )
    current = (string)enumerator.Current;

while( null != current)
{
    current = (string)enumerator.Current; }

    myDelimitedString += current;

    if( enumerator.MoveNext() )
        myDelimitedString += DELIMITER;
    else
        break;
}