How do I merge (or zip) two IEnumerables together?

Question

I have an IEnumerable and an IEnumerable that I want merged into an IEnumerable> where

Answer 1

Another implementation from the functional-dotnet project by Alexey Romanov:

/// 

/// Takes two sequences and returns a sequence of corresponding pairs. 
/// If one sequence is short, excess elements of the longer sequence are discarded.
/// 
/// The type of the 1.
/// The type of the 2.
/// The first sequence.
/// The second sequence.
/// 
public static IEnumerable> Zip(
    this IEnumerable sequence1, IEnumerable sequence2) {
    using (
        IEnumerator enumerator1 = sequence1.GetEnumerator())
    using (
        IEnumerator enumerator2 = sequence2.GetEnumerator()) {
        while (enumerator1.MoveNext() && enumerator2.MoveNext()) {
            yield return
                Pair.New(enumerator1.Current, enumerator2.Current);
        }
    }
    //
    //zip :: [a] -> [b] -> [(a,b)]
    //zip (a:as) (b:bs) = (a,b) : zip as bs
    //zip _      _      = []
}

Replace Pair.New with new KeyValuePair (and the return type) and you're good to go.