Repeater ItemDataBound Skipping First Record

My repeater is generally working well but for some reason is skipping the data binding to a control for the first item in the repeater. The code seems pretty straightforward to me but I am obviously missing something. Can one of you experts help?

Protected Sub rptGrants_ItemDataBound(sender As Object, e As RepeaterItemEventArgs)
        If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
            Dim GrantID As HiddenField = DirectCast(e.Item.FindControl("hfGrantID"), HiddenField)
            Dim iz As ImageZoom = DirectCast(e.Item.FindControl("ImageZoom1"), ImageZoom)
            Dim cm As New SqlCommand("PBR_SelectGrantPhotos", cn)
            cm.CommandType = CommandType.StoredProcedure
            cm.Parameters.Add("@GrantID", SqlDbType.Int).Value = GrantID.Value
            Try
                cn.Open()
                Dim izda As New SqlDataAdapter(cm)
                Dim izds As New DataSet
                izda.Fill(izds)
                iz.DataSource = izds
                iz.DataBind()
            Catch ex As Exception
            Finally
                cn.Close()
            End Try
        End If
    End Sub

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