public ThumbNailList()
{
InitializeComponent();
this.Font = new System.Drawing.Font(SystemFonts.DialogFont.FontFamily, 9F);
_listView.LargeImageList = _thumbnailImageList;
_listView.Sorting = SortOrder.Ascending;
_listView.ListViewItemSorter = new SortListViewItemByIndex();
_listView.OwnerDraw = true;
_listView.DrawItem+=new DrawListViewItemEventHandler(_listView_DrawItem);
_boundsPen = new Pen(Brushes.DarkGray, 2);
_placeHolderImage = new Bitmap(32, 32);
}