在文本框中插入ID和返回值实体框架c＃

Question

I am inserting ID of student in the textbox and i want to return all the values in different labels. If am using Three tables Students,Attend and Courses. SID of student is a foreign key in Attend And cID of courses have a foreign key in Attend Table. i am joining these three tables .

   Attend obJ = new Attend();
   Student oAd = new Student();
   oAd.sID = int.Parse(metroTextBox1.Text);

   var entryPoint = (from ep in dbContext.Attends
   join en in dbContext.Students on ep.sID equals en.sID join te 
   in dbContext.Courses on ep.cID equals te.cId
   where en.sID == oAd.sID
   select new{

      Name = en.First_Name,
      Course = te.Name,
      Presents=ep.Present,
      Absents=ep.Absent,
      });

            foreach (var iL in entryPoint) {

                metroLabel1.Text = iL.Name;
                metroLabel2.Text = iL.Course;
               metroLabel3.Text = iL.Absents.ToString();
               metroLabel4.Text = iL.Presents.ToString();

            }

the code is not giving any kind of response i want to show all though it is not giving anykind of error

Student table Sid is in Attend Table
Course  table cID is in Attend Table

By joining these three tables i want to show which student has taken which course and what is the name of that course

Answer 1

by trying again and again i have found the answer how to join and get the fields of different classes from using foreach loop

        foreach (var eb in dbContext.Attends) {

            metroLabel3.Text= eb.Student.First_Name.ToString();

        }