Page_load

[hpl]

I have this code, which works fine in my Page_load. But if I try to run the sub from SelectedIndexChanged then nothing happens. Do I have to specify something for my label like 'autopostback=true' for drpLists?

Protected Sub bindKappeDimension()
        If Not Page.IsPostBack Then
            Dim strCn As String = "Provider=Microsoft.jet.oledb.4.0;"
            strCn += "Data Source=" & Server.MapPath("priser04.MDB") & ";"
            Dim strSql As String = "Select Dim,Serie1 FROM SerieMat WHERE matId=" & intMatNr
            Dim strResultsHolder As Integer

            Dim objConnection As New OleDbConnection(strCn)
            Dim objCommand As New OleDbCommand(strSql, objConnection)
            Dim objDataReader As OleDbDataReader

            objConnection.Open()
            objDataReader = objCommand.ExecuteReader()

            Dim medieDim As Integer
            medieDim = CInt(Dim1.SelectedItem.Text)

            Do While objDataReader.Read() = True
                strResultsHolder = objDataReader("Dim")
                kappe1.Text = strResultsHolder
            Loop


            objDataReader.Close()
            objConnection.Close()
        End If
    End Sub