Hello,
This is just a guess from looking at it but it seems that you may be 
getting that null reference error because you are not returning anything 
from the function getPage. When you apply the ToString method to that 
object without returning anything, I believe that could cause a null 
reference error. Hope this helps

Kevin


> Hello 
> I succ. compiled some vb.net code like below, and also managed to acces 
> this from c# with the using namespace instruction. But when I run the 
> compiler it tells me it cannot instantiate the object. What must I do to 
> be able to use vb.net code in c#. Very frustrating since I thought MS 
> wanted cross-language useability.
> dirk
> 
> vb.net code:
> Imports System
> Imports System.Data
> Imports System.Data.OleDb
> Imports System.Data.SqlClient
> Imports System.Data.SqlTypes
> Imports System.Data.Common
> 
> Namespace vbFuncs
> 
>     Public Class controlsText
> 
>         Private pageControlsArr(2, 500) As String
>         Private language As String
>         Private lingoStr As String
>         Private page As String
> 
>         Sub New()
> 
>         End Sub
> 
>         Public Function getLanguage(ByVal HTTP_ACCEPT_LANGUAGE As 
String, 
> ByVal lang As String) As String
>             Try
>                 language = lang.Replace("'", "").ToString()
> 
>                 'select language
>                 If language <> "" Then
>                     lingoStr = HTTP_ACCEPT_LANGUAGE.Substring(0, 
> 2).ToString()
>                     Select Case lingoStr
>                         Case "en"
>                             language = "English"
>                             page = "start"
>                         Case "de"
>                             language = "Deutsch"
>                             page = "start"
>                     End Select
>                 End If
>             Catch
>             End Try
>         End Function
> 
>         Public Function getPage(ByVal pag As String) As String
>             Try
>                 If page.Length = 0 Then
>                     page = "intro"
>                 Else
>                     page = pag
>                 End If
> 
>             Catch
>             End Try
>         End Function
> 
>         Public Function fetchControlText(ByVal currentPage As String, 
> ByVal currentLanguage As String, ByVal connStr As String) As String(,)
> 
>             'active connection
>             Dim connPage As OleDbConnection
>             connPage.ConnectionString = connStr
>             connPage.Open()
> 
>             'sp generics
>             Dim objPage As OleDbCommand
>             objPage.Connection = connPage
> 
>             Dim recControlsText As OleDbDataReader
>             Dim objParamPage, objParamLanguage As OleDbParameter
> 
>             objParamPage = New OleDbParameter("page_", 
OleDbType.VarChar, 
> 255)
>             objParamLanguage = New OleDbParameter("language_", 
> OleDbType.VarChar, 255)
> 
>             objPage.Parameters.Add(objParamPage)
>             objPage.Parameters.Add(objParamLanguage)
> 
>             objPage.Parameters("page_").Value = currentPage.ToString()
>             objPage.Parameters("language_").Value = 
> currentLanguage.ToString()
>             objPage.CommandText = "getPageControlsText"
>             recControlsText = objPage.ExecuteReader()
> 
>             Dim countPage As Integer
>             countPage = 1
>             While recControlsText.Read()
>                 pageControlsArr(1, countPage) = recControlsText.GetValue
> (5).value
>                 pageControlsArr(2, countPage) = recControlsText.GetValue
> (6).value
>                 countPage = countPage + 1
>             End While
>             recControlsText.Close()
> 
>             connPage.Close()
>             recControlsText = Nothing
>             connPage = Nothing
> 
>             fetchControlText = pageControlsArr
>         End Function
> 
>     End Class
> End Namespace
> 
> C# code
> public controlsText ct;
> ct = new controlsText();
> 
> //this is where the bug comes up: compiler message is "Value null was 
> found where an instance of an object was required. "
> actualPage = ct.getPage(currentPage).ToString();
>