private void ControlsToData()
{
if (_VXIKeying == null)
_VXIKeying = new VXIKeying();
_VXIKeying.bottomLeft = (int) edtBottomLeft.Value;
_VXIKeying.bottomRight = (int) edtBottomRight.Value;
_VXIKeying.topLeft = (int) edtTopLeft.Value;
_VXIKeying.topRight = (int) edtTopRight.Value;
}