private void SetRandomPropertyValues(StockData item)
        {
			item.Name = String.Format("{0}{1}{2}{3}", this.letters[this.rnd.Next(0, this.letters.Count())], this.letters[this.rnd.Next(0, this.letters.Count())],
				this.letters[this.rnd.Next(0, this.letters.Count())], this.letters[this.rnd.Next(0, this.letters.Count())]);
            item.LastUpdate = DateTime.Now;
			item.Change = this.rnd.NextDouble();
        }
 private StockData CreateNewStockItem()
 {
     var item = new StockData();
     this.SetRandomPropertyValues(item);
     return item;
 }