问题描述
我开发了一个测验系统,如果用户重复测验,我希望测验分数会更新。我不知道该怎么做,因为如果他们单击按钮,idscore不会保存任何值。
控制器
[HttpPost]
public ActionResult Insertscore([Bind(Include = "idscore,date,status,IdMaterial,score,username")] scoreQ s)
{
if (Session["UserName"] != null)
{
var user = Session["UserName"].ToString();
bool isValid = db.scoreQs.Any(x => x.username == user && x.IdMaterial== s.IdMaterial );
if (isValid)
{
var quizz = db.scoreQs.Where(x => x.MaterialLearning.id == s.IdMaterial && x.username == user).Select(a => a.idscore );
// scoreQ existing = db.scoreQs.Find(quizz);
if (ModelState.IsValid)
db.Entry(s).State = EntityState.Modified;
db.SaveChanges();
return Json("true",JsonRequestBehavior.AllowGet);
}
else
{
s.username = user;
db.scoreQs.Add(s);
db.SaveChanges();
return Json("true",JsonRequestBehavior.AllowGet);
}
}
else
{
return RedirectToAction("Login","Account");
}
}
.js
function restartQuiz() {
start.style.display = "block";
scoreBlock.style.display = "none";
scoreMessage.style.display = "none";
quizAgain.style.display = "none";
score = 0;
questionIndex = 0;
}
解决方法
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