C# - elegant way of partitioning a list?

Question

I\'d like to partition a list into a list of lists, by specifying the number of elements in each partition.

For instance, suppose I have the list {1, 2, ... 11}, and

Answer 1

Here is an extension method that will do what you want:

public static IEnumerable> Partition(this IList source, Int32 size)
{
    for (int i = 0; i < (source.Count / size) + (source.Count % size > 0 ? 1 : 0); i++)
        yield return new List(source.Skip(size * i).Take(size));
}

Edit: Here is a much cleaner version of the function:

public static IEnumerable> Partition(this IList source, Int32 size)
{
    for (int i = 0; i < Math.Ceiling(source.Count / (Double)size); i++)
        yield return new List(source.Skip(size * i).Take(size));
}