gistfile1.cs

        public T RandomItem()
        {
            int randomRI = 0;
            Random random = new Random();
            lock (random)
            {
                randomRI = random.Next(0, this.Count - 1);
            }
            return this[randomRI];
        }

BrandEnsemble.Framework.RelatedItems.Components.RelatedItem ri = BrandEnsemble.Framework.RelatedItems.RelatedItems.GetAllRelatedItems().RandomItem();

riList.Filter(new string[] {"Caption"}, String.Empty, FilterOperand.NotEquals);