public IEnumerable <Course> Get(Student student)
{
var courseSelections = new CourseSelectionServiceImpl().GetCoursesByStudentId(student);
var courses = new List <Course>(15);
//相等于使用foreach循环，把查出来的课程对象放进courses这个List里面
courses.AddRange(courseSelections.Select(courseSelection => GetByCourseId(courseSelection.CourseId)));
return(courses);
}
protected void Page_Load(object sender, EventArgs e)
{
url = Request.Url.AbsoluteUri.Split('/').Last();
AuthHelper.LoginCheck(Session, Request, Response, Server);
AuthHelper.TeacherOnlyPage(Session, Request, Response, Server);
if (Request.QueryString["pt"] == null || Request.QueryString["id"] == null)
{
Response.Redirect("~/Default.aspx");
}
PageType = Request.QueryString["pt"];
int id = int.Parse(Request.QueryString["id"]);
if (PageType == "ex")
{
var courseExperiment =
(CourseExperiment) new ExperimentServiceImpl().GetCourseExperimentById(id);
var recoders =
new CourseSelectionServiceImpl().GetRecordStudentByCourseId(courseExperiment.CourseId);
ExInfo.Add("name", courseExperiment.Name);
ExInfo.Add("deadline", courseExperiment.Deadline.ToString());
ExInfo.Add("purpose", courseExperiment.Purpose);
ExInfo.Add("steps", courseExperiment.Steps);
ExInfo.Add("references", courseExperiment.References);
foreach (var i in recoders)
{
using (var context = new HaermsEntities())
{
var queryans = context.Experiment.Where(ex =>
ex.CourseExperimentId == courseExperiment.CourseExperimentId && i.StudentId == ex.StudentId);
var newnode = new Exnode();
if (queryans.FirstOrDefault() != null)
{
newnode.filename = queryans.FirstOrDefault()?.Name;
newnode.exid = queryans.FirstOrDefault()?.ExperimentId.ToString();
newnode.mark = queryans.FirstOrDefault()?.Mark == null
? "0"
: queryans.FirstOrDefault()?.Mark.ToString();
newnode.path = queryans.FirstOrDefault()?.Path;
}
else
{
newnode.filename = null;
newnode.exid = null;
}
newnode.stuname = context.Student.Find(i.StudentId)?.Name;
newnode.stunum = context.Student.Find(i.StudentId)?.StudentNumber;
exlist.Add(newnode);
}
}
}
else if (PageType == "ho")
{
var courseHomework = new HomeworkServiceImpl().GetCourseHomeworkByCourseId(id);
var recoders =
new CourseSelectionServiceImpl().GetRecordStudentByCourseId(courseHomework.CourseId);
HoInfo.Add("name", courseHomework.Name);
HoInfo.Add("deadline", courseHomework.Deadline.ToString(CultureInfo.InvariantCulture));
HoInfo.Add("purpose", courseHomework.Content);
foreach (var i in recoders)
{
using (var context = new HaermsEntities())
{
var queryans =
context.Homework.Where(ho => ho.CourseHomeworkId == id && ho.StudentId == i.StudentId);
Honode newnode = new Honode();
if (queryans.FirstOrDefault() != null)
{
newnode.filename = queryans.FirstOrDefault()?.Name;
newnode.hoid = queryans.FirstOrDefault()?.HomeworkId.ToString();
newnode.mark = queryans.FirstOrDefault()?.Mark == null
? "0"
: queryans.FirstOrDefault()?.Mark.ToString();
newnode.path = queryans.FirstOrDefault()?.Path;
}
else
{
newnode.filename = null;
newnode.hoid = null;
}
newnode.stuname = context.Student.Find(i.StudentId)?.Name;
newnode.stunum = context.Student.Find(i.StudentId)?.StudentNumber;
holist.Add(newnode);
}
}
}
}
