(VB 2010 express)Listbox da database

[gibra]

Non puoi.

Devi aprirti un DataReader sui campi che ti interessa mostrare, poi potrai popolare il combobox concatenando le colonne:

Dim OleDbConnectionString As String = <stringa di connessione al database>
Using conn As OleDbConnection = New OleDbConnection(OleDbConnectionString)
    Dim sql As String = "SELECT campo1, campo2 FROM tabella"
    Dim aCommand As OleDbCommand = New OleDbCommand(sql, conn)
    Using aReader As OleDbDataReader = aCommand.ExecuteReader
        cboFields.Items.Clear()
        If aReader.HasRows Then
            While aReader.Read()
                cboFields.Items.Add(aReader(0).ToString + " " + aReader(1).ToString)
            End While
        End If
    End Using
End Using