Use array to add new entry in model in asp.net mvc - arrays

Question

I'm using asp.net mvc 4 and Entity Framework 6 to make a website where I can store data in MSSQL database. I want to make a function where it'll make a copy of an entry with different id. I want to put those copied values in an array and push it to the model to make the back-end processing faster. But I'm not sure how to do it.
Here are my codes:
public ActionResult FlatCopy(FlManagement FlTable, int FlId = 0)
{
var getOwner = rentdb.OwnerRegs.Where(a => a.username == User.Identity.Name).FirstOrDefault();
var getId = getOwner.serial;
var getLimit = getOwner.limit;
var getPosted = getOwner.posted;
FlInfo model = FlTable.Flats;
if (ModelState.IsValid)
{
if (getLimit != 0)
{
try
{
getOwner.limit = getLimit - 1;
getOwner.posted = getPosted + 1;
var dbPost = rentdb.FlatInfoes.Where(p => p.serial == FlId).FirstOrDefault();
if (dbPost == null)
{
TempData["flat_edit_fail"] = "Error! Information update failed!";
return RedirectToAction("FlatManager", new { FlPanelId = "AllFl" });
}
model.flatno = "Copy of " + dbPost.flatno;
model.type = dbPost.type;
model.owner_id = getId;
model.t_id = 0;
model.t_name = "N/A";
model.t_phone = "N/A";
model.basic = dbPost.basic;
model.electric = dbPost.electric;
model.gas = dbPost.gas;
model.water = dbPost.water;
model.total = dbPost.total;
model.advancerent = dbPost.advancerent;
model.currency = dbPost.currency;
model.title = dbPost.title;
model.status = "N/A";
db.FlatInfoes.Add(model);
db.SaveChanges();
TempData["success"] = "Information Added Successfully!";
return RedirectToAction("FlManager", new { FlPanelId = "AllFl" });
}
catch
{
TempData["fail"] = "Error! Please Provide Valid Information.";
return RedirectToAction("FlManager", new { FlPanelId = "AllFl" });
}
}
else
{
TempData["fail"] = "You've reached your post limit!";
return RedirectToAction("FlManager", new { FlPanelId = "AllFl" });
}
}
else
{
TempData["fail"] = "Error! Please Provide Valid Information.";
return RedirectToAction("FlManager", new { FlPanelId = "AllFl" });
}
}
How can I put the values in an array and push the array in model to add a new entry?

Answer 1

You could detach the entity from the DbContext then re-add it to the EntityCollection.
rentdb.Entry(dbPost).State = EntityState.Detached;
rentdb.FlatInfoes.Add(dbPost);
solution 2:(is better)
var model = new FlInfo();
rentdb.FlatInfoes.Add(model);
var sourceValues = rentdb.Entry(dbPost).CurrentValues;
rentdb.Entry(model).CurrentValues.SetValues(sourceValues);
rentdb.SaveChanges();