I\'m declaring some strings that are empty, so it won\'t throw errors later on.
I\'ve read that this was the proper way:
string Camnr = Klantnr = Ord
Try with:
string Camnr, Klantnr, Ordernr, Bonnr, Volgnr, Omschrijving; Camnr = Klantnr = Ordernr = Bonnr = Volgnr = Omschrijving = string.Empty;