public JsonResult GetAreaPer(string bukrs, int tipoper)
{
//traer datos
ViewBag.GpoCiaG = HttpContext.Session.GetString(SessionGpoCia);
string x = ViewBag.GpoCiaG;
//inserta datos
var modifiedData = new List <SelectListItem>();
modifiedData = _bukrs.GetAreaPer(bukrs, x, tipoper);
return(Json(modifiedData));
}