public void AddAfterSelectedBoxes(IEnumerable <TessBoxControl> selectedBoxes)
{
var box = selectedBoxes.LastOrDefault();
if (box != null)
{
var pos = Boxes.IndexOf(box);
var newBox = new TessBoxControl()
{
Width = box.Width,
Height = box.Height,
Value = "n"
};
Canvas.SetLeft(newBox, box.Left + box.Width);
Canvas.SetTop(newBox, box.Top);
Boxes.Insert(pos + 1, newBox);
}
}