Check if one list contains all items from another list in order

Question

How can I determine if List A contains all of the elements from List B in the same order?

List A can have additional elements that List B does not have, but must co

Answer 1

I think my version is more efficient.

public static class CollectionExtension
{
    public static bool SequenceContain(this IEnumerable target, IEnumerable that)
    {
        var targetEnumerater = target.GetEnumerator();
        var thatEnumerater = that.GetEnumerator();
        var thatHasValue = thatEnumerater.MoveNext();
        var targetHasValue = targetEnumerater.MoveNext();
        var matchCount = 0;
        try
        {
            while (thatHasValue && targetHasValue)
            {
                if (!EqualityComparer.Default.Equals(targetEnumerater.Current, thatEnumerater.Current))
                {
                    if (matchCount > 0)
                    {
                        thatEnumerater.Reset();
                        thatEnumerater.MoveNext();
                        matchCount = 0;
                    }
                    targetHasValue = targetEnumerater.MoveNext();
                    continue;
                }
                targetHasValue = targetEnumerater.MoveNext();
                thatHasValue = thatEnumerater.MoveNext();
                matchCount++;
            }
            return matchCount == that.Count();
        }
        finally
        {
            thatEnumerater.Dispose();
            targetEnumerater.Dispose();
        }
    }
}