ExamWeb/Controllers/AnswersController.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using ExamWeb.Models;

namespace ExamWeb.Controllers
{
    public class AnswersController : Controller
    {
        static Answer answer = null;
        //延迟加载
        ExamDBEntities db = new ExamDBEntities();

        // GET: 开始答题
        public ActionResult Temp(int PaperID)
        {
            int StuID = int.Parse(Session["StuID"].ToString());
            //查询考试记录
            Answer answer1 = db.Answer.Where(t => t.PaperID == PaperID && t.StuID == StuID).FirstOrDefault();
            if (answer1 == null)//没有考试记录
            {
                Answer an = new Answer()
                {
                    StuID = StuID,
                    PaperID = PaperID,
                    AnswerState = 0,
                    AnswerScore = 0,
                    AnswerTime = DateTime.Now
                };

                //插入考试记录
                Answer answer = new Answer()
                {
                    StuID = StuID,
                    PaperID = PaperID,
                    AnswerState = 1,
                    AnswerTime = DateTime.Now
                };
                db.Entry(answer).State = System.Data.Entity.EntityState.Deleted;
                db.SaveChanges();
                int answerId = answer.AnswerID;

                var topicList = db.Topic.Where(t => t.PaperID == PaperID).ToList();

                //插入空白的考题
                foreach (var item in topicList)
                {
                    Detail detail = new Detail()
                    {
                        AnswerID = answerId,
                        TopicID = item.TopicID,
                        DetailAnswer=""
                    };
                    db.Entry(detail).State = System.Data.Entity.EntityState.Modified;
                };
                db.SaveChanges();
            }
            return RedirectToAction("Index", new { PaperID = PaperID, StuID = StuID });