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        private void listView1_DragDrop(object sender, DragEventArgs e)
        {
            int i = 0;
            string[] fotos = (string[])e.Data.GetData(DataFormats.FileDrop);
            this.listView1.View = View.LargeIcon;
            ImageList imageList = new ImageList();
            imageList.ImageSize = new Size(100, 100);
            imageList.ColorDepth = ColorDepth.Depth32Bit;

                foreach (string each in fotos)
                {
                    Bitmap img= new Bitmap(each);
                    listView1.Items.Add(each,i);
                    imageList.Images.Add(img);
                    i++;
                }    

            listView1.LargeImageList = imageList;
        }