forse devi importare altre cose.


ti riporto una cosa mia cosi forse ti rendi conto

Imports System
Imports System.Data
Imports System.Data.OleDb

Public Class database
Public ConnectionString As String
Dim objConn As New OleDbConnection()
Dim objCmd As New OleDbCommand()

Public Function SelectSQL(ByVal strSelect As String) As OleDbDataReader
Try
objConn = New OleDbConnection(ConnectionString)
objCmd = New OleDbCommand(strSelect, objConn)
objCmd.Connection.Open()
Return objCmd.ExecuteReader
objCmd.Connection.Close()
Catch ex As OleDbException
Return Nothing
End Try
End Function