Error: "Specified cast not valid" on ItemDataBoun

snejsnej · May 24th, 2006, 05:36 PM

Hi,
I'm getting a "Specified cast not valid" error on running the following code; I've noted where the error pops up. Any idea why it's happening? The code is for populating a nested repeater.

Code:

Public Sub rptQuestions_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles rptQuestions.ItemDataBound
        Dim lt As ListItemType = e.Item.ItemType
        If lt = ListItemType.Item OrElse lt = ListItemType.AlternatingItem Then
            Dim dv As DataRowView = CType(e.Item.DataItem, DataRowView)  <--- ERROR OCCURS HERE
            If Not dv Is Nothing Then
                Dim nestedRepeater As Repeater = CType(e.Item.FindControl("rptAnswers"), Repeater)
                If Not nestedRepeater Is Nothing Then
                    nestedRepeater.DataSource = dv.CreateChildView("Answers")
                    nestedRepeater.DataBind()
                End If
            End If
        End If
    End Sub

By the way, I'm retrieving the information from an ArrayList.

Thanks,
Jens