Describes how the title attribute is added to the option element

ListItemToOption.cs

        internal static string ListItemToOption(ImageSelectListItem item, string imagePath = "")
        {
            //if (!(item is ImageSelectListItem))
            //{
            //    throw new InvalidCastException(string.Format("Cannot cast {0} to System.Web.Mvc.Html.ImageImageSelectListItem.", item.GetType()));   
            //}

            //ImageSelectListItem imageImageSelectListItem = item as ImageSelectListItem;

            TagBuilder builder = new TagBuilder("option")
            {
                InnerHtml = HttpUtility.HtmlEncode(item.Text)
            };

            if (item.Value != null)
            {
                builder.Attributes["value"] = item.Value;
            }

            if (!string.IsNullOrEmpty(imagePath))
            {
                builder.Attributes["title"] = BuildFullImagePath(imagePath, item.ImageFileName);
            }

            if (item.Selected)
            {
                builder.Attributes["selected"] = "selected";
            }

            return builder.ToString(TagRenderMode.Normal);
        }