List Doesn't Working in asp.net mvc4

Rahul Mittal

9y1.1k.NET

Error Type:

There is no ViewData item of type 'IEnumerable' that has the key 'Course_ID'.

Hi Everyone i am facing a problem as above using asp.net MVC4 technology.

Controller:

[HttpGet]

public ActionResult Register(int id)

{

Student_Mgt student = new Student_Mgt();

IEnumerable list = new SelectList(db.Courses.ToList(), "Course_ID", "Course_Name");

ViewBag.SelectCourses = list;

return View(student);

}

[HttpPost]

[ActionName("Register")]

public ActionResult RegisterPost(Student_Mgt Student)

{

if (ModelState.IsValid)

{

db.Student_Mgt.Add(Student);

db.SaveChanges();

return RedirectToAction("List_Enquiries", "Main");

}

else

{

return View();

}

View

@Html.DropDownListFor(m=>m.Course_ID,ViewBag.SelectCourses as IEnumerable, "Select Course" ,new {@id="courses",@class="form-control"})

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Amit Kumar9y ago
Hi Dear,
Use it in your view .
@Html.DropDownListFor(m=>m.Course_ID, new SelectList(ViewBag.SelectCourses, "Course_ID", "Course_Name", Model.Course_ID),
"Select Course" ,new {@id="courses",@class="form-control"})
Rahul Mittal9y ago
Dear now i used session instead of viewbag & now it's fine.

But i am confused that use of session to create a list is a good option or not.
Rahul Mittal9y ago
Thanks @Amit
But still i am not getting it. The problem is still there.

If possible then please provide a full detailed example for it.
Amit Kumar9y ago
Hi Dear,
Please follow the below link.

http://stackoverflow.com/questions/38133896/asp-net-mvc-c-sharp-multiple-dropdown-list-binding-to-view-and-save
Bikesh Srivastava9y ago
It may be works fine,but still you are getting error please let me know so that we can assist you.