public ActionResult _Function21Update(string id)
{
GEN_PARAMETER parameter = db.GEN_PARAMETER.Find(id);
if (TryUpdateModel(parameter))
{
if (ModelState.IsValid)
{
parameter.LAST_UPDATE_DATE = DateTime.Now;
DbConnection con = ((IObjectContextAdapter)db).ObjectContext.Connection;
con.Open();
using(var tran = con.BeginTransaction())
{
try
{
string testsql = "update test_current set value = '" + parameter.VALUE + "'";
db.Database.ExecuteSqlCommand(testsql);
db.SaveChanges();