Display message with my user id - it will not present it - asp.net-mvc

Question

Right now I am working to create a messaging system to the website, but when I have to pull at it is sent to me and from me, it will not display content on the page.
there mind if I say that it should only take one of them, so accepterer it is perfectly fine.
It's making error here
[HttpGet]
public ActionResult besked(int id)
{
DataLinqDB db = new DataLinqDB();
UnderviserViewModel Model = new UnderviserViewModel();
//Brugerid :)
int userid = Helper.BrugerInformation.SessionVale.SessionBrugerid();
//Det som er blevet sendt til mig!
var ViewBeskederFrom = db.MessageTeachers.Where(i => i.id == id && i.fk_userTo == userid || i.fk_userFrom == userid).ToList();
if (ViewBeskederFrom != null)
{
Model.BeskederFrom = ViewBeskederFrom.ToList();
}
else
{
return RedirectToAction("Indbakke");
}
return View(Model);
}
It works fine if I do it like this.
var ViewBeskederFrom = db.MessageTeachers.Where(i => i.id == id && i.fk_userTo == userid || i.fk_userFrom == userid).ToList();
How can it be that it will not present it if I'm sender or recipient of the message end?
Database here (i have 316 userid)
UPDATE
[HttpGet]
public ActionResult besked(int id)
{
DataLinqDB db = new DataLinqDB();
UnderviserViewModel Model = new UnderviserViewModel();
//Brugerid :)
int userid = Helper.BrugerInformation.SessionVale.SessionBrugerid();
//Det som er blevet sendt til mig!
var ViewBeskederFrom = db.MessageTeachers.FirstOrDefault(i => i.id == id);
if (ViewBeskederFrom != null)
{
List<MessageTeacher> list = db.MessageTeachers.Where(i => i.id == id && i.fk_userTo == userid || i.fk_userFrom == userid).ToList();
if (list != null)
{
Model.BeskederFrom = list.ToList();
}
}
else
{
return RedirectToAction("Indbakke");
}
return View(Model);
}

Answer 1

Because you have an AND condition
i.fk_userTo == userid && i.fk_userFrom == userid
That means you need to have records with both fk_userTo and fk_userFrom column having the same userId value. From your screenshot you do not have such records.
You should be doing the OR condition which will give you either messages you sent or messages sent to you by some other user
i.fk_userTo == userid || i.fk_userFrom == userid
Also, your first if condition( checking the record id value against the id parameter of the action method) is probably going to give you only one record assuming id is the primary key of the table. So the result you are getting in ViewBeskederFrom variable will be List with maximum of one record.