mvc 4 asp vb.net runtime menu building problem

Question

 Hi.

I am iniciate in mvc4, and need help.

my code is

 

@Code

For Each dr As Data.DataRow In ViewBag.MenuList.rows

Dim mm As String = dr.Item(2).ToString

@:

@Html.ActionLink(mm, "#", "#")

@:

For Each drCat As Data.DataRow In ViewBag.getSubMenu(mm).rows <- problem is hear

@:

@Html.ActionLink(drCat.Item(2).ToString, "#", "#")

@:

Next

@:

@:

Next

End code

 

Controller :

 

 

Function getSubMenu(ByVal sMenu As String) As ActionResult

Try

'cCon = New SqlConnection(sCon)

'cCon.Open()

Dim subMenuCatList As New clsCategorias

subMenuCatList.cConn = cCon

subMenuCatList.MenuStr = sMenu

Dim dsCat As DataSet = subMenuCatList.GetListCategories()

ViewBag.MenuList = dsCat.Tables(0)

Dim a As New List(Of String)

For Each el As DataRow In dsCat.Tables(0).Rows

a.Add(el(0) & ";" & el(2))

Next

Session("myMenuCatList") = a

Return View(a)

Catch ex As Exception

Throw ex

Finally

cCon.Close()

End Try

 

I am trying to build the menu in "runtime", the first level of the menu is being returned well, but when I am passing a parameter to fill the second level of the menu the system gives an error. I think the problem is in passing the parameter. Can someone help?

 

Thancks