public ActionResult Update(int gradeId, int registrationId, string value, string stamp)
{
string[] parts = stamp.Split('?');
byte[] transfer = new byte[8];
for (int i = 0; i < 8; i++)
{
transfer[i] = Convert.ToByte(parts[i]);
}
GradeValuesAccess g = new GradeValuesAccess();
return(Json(g.editGradeValue(gradeId, registrationId, value, transfer)));
}
