Split a List into smaller lists of N size

Question

I am attempting to split a list into a series of smaller lists.

My Problem: My function to split lists doesn\'t split them into lists of the correct

Answer 1

public static IEnumerable> SplitIntoSets
    (this IEnumerable source, int itemsPerSet) 
{
    var sourceList = source as List ?? source.ToList();
    for (var index = 0; index < sourceList.Count; index += itemsPerSet)
    {
        yield return sourceList.Skip(index).Take(itemsPerSet);
    }
}