Using EF model database not Updating with updateModel - vb.net

Question

MVC 3, VB.NET, RAZOR app, using EF. I am having an issue in my post function with the database not updating at all... Using a break at db.savechanges() I look at the variable and all of the correct information is contained in the UpdateModel( ) part. But no dice the code executes and returns no errors so all looks fine but when I look at the database table it has not been changed at all, all of the old values are still present.. Function is as follows:
<AcceptVerbs(HttpVerbs.Post)>
Function EditCourse(ByVal _eCourse As cours) As ActionResult
Dim id As Integer = _eCourse.course_id
Dim _filename As String = String.Empty
Dim _guid As String = String.Empty
Dim _count As Integer = 0
Dim _courseFiles As cours = db.courses.Where(Function(f) f.course_ref = _eCourse.course_ref).First
Dim _file1 As String = _courseFiles.handoutFile1
Dim _file2 As String = _courseFiles.handoutFile2
Dim _file3 As String = _courseFiles.handoutFile3
Dim _file4 As String = _courseFiles.handoutFile4
Dim _file5 As String = _courseFiles.handoutFile5
Dim _file6 As String = _courseFiles.handoutFile6
Dim _file7 As String = _courseFiles.handoutFile7
Dim _file8 As String = _courseFiles.handoutFile8
For Each File As String In Request.Files
_count += 1
Dim hpf As HttpPostedFileBase = TryCast(Request.Files(File), HttpPostedFileBase)
If hpf.ContentLength = 0 Then
Continue For
End If
Dim savedfileName As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + hpf.FileName
hpf.SaveAs(savedfileName)
_filename = hpf.FileName
Select Case _count
Case Is = 1
If Not String.IsNullOrWhiteSpace(_file1) Then
If Not String.Compare(_eCourse.handoutFile1, _file1) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile1) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file1
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile1 = _filename
Case Is = 2
If Not String.IsNullOrWhiteSpace(_file2) Then
If Not String.Compare(_eCourse.handoutFile2, _file2) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile2) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file2
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile2 = _filename
Case Is = 3
If Not String.IsNullOrWhiteSpace(_file3) Then
If Not String.Compare(_eCourse.handoutFile3, _file3) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile3) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file3
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile3 = _filename
Case Is = 4
If Not String.IsNullOrWhiteSpace(_file4) Then
If Not String.Compare(_eCourse.handoutFile4, _file4) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile4) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file4
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile4 = _filename
Case Is = 5
If Not String.IsNullOrWhiteSpace(_file5) Then
If Not String.Compare(_eCourse.handoutFile5, _file5) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile5) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file5
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile5 = _filename
Case Is = 6
If Not String.IsNullOrWhiteSpace(_file6) Then
If Not String.Compare(_eCourse.handoutFile6, _file6) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile6) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file6
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile6 = _filename
Case Is = 7
If Not String.IsNullOrWhiteSpace(_file7) Then
If Not String.Compare(_eCourse.handoutFile7, _file7) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile7) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file7
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile7 = _filename
Case Is = 8
If Not String.IsNullOrWhiteSpace(_file8) Then
If Not String.Compare(_eCourse.handoutFile8, _file8) = 0 AndAlso Not String.IsNullOrWhiteSpace(_eCourse.handoutFile8) Then
Dim FileToDelete As String = Path.Combine(AppDomain.CurrentDomain.BaseDirectory) + "\CourseHandouts\" + _file8
If System.IO.File.Exists(FileToDelete) = True Then
System.IO.File.Delete(FileToDelete)
End If
End If
End If
_eCourse.handoutFile8 = _filename
End Select
Next
UpdateModel(_eCourse)
db.SaveChanges()
Return RedirectToAction("CourseIndex")
End Function
Any Ideas on why this is going wrong?????

Answer 1

You aren't attaching your _eCourse to your context so it won't update it.
UpdateModel I don't believe is required here at all as that simply takes your posted form values an assigns to your model which you already have since eCourse is a parameter. Do something like (on phone here sorry)
DB.Entry(_eCourse).State = EntityState.Modified
And then save changes