public JsonResult showGridlIst(int FK_screenId)
{
//var v = mm.Students.Where(m => m.RollNo == i).Select(m => new { RollNo = m.RollNo, Name = m.Name, Course = m.Course, Gender = m.Gender }).FirstOrDefault();
var v = _screenService.GetAllScreenActionByScreeiID(FK_screenId);
return(Json(v, JsonRequestBehavior.AllowGet));
}