Return list of specific property of object using linq
===

Given a class like this: 

    public class Stock
    {
        public Stock() {}
        public Guid StockID { get; set; }
        public string Description { get; set; }
    }

Lets say I now have a `List<Stock>`. If I would like to retrieve a list of all the StockIDs and populate it into a IEnumerable or IList. Obviously I can do this.

    List<Stock> stockItems = new List<Stock>();
    List<Guid> ids = new List<Guid>();

    foreach (Stock itm in stockItems) 
    {
        ids.Add(itm.StockID);
    }

But is there some way I could use Linq to achieve the same result? I thought `Distinct()` might do it but couldn't work out how to achieve the desired result.

