//Add it to Customer database, and the selected customers database. public string AddUnitForCustomer(string UnitID, string Room, string type, string customer) { DataAccess da = new DataAccess(); if (da.AddUnitToCustomerTable(UnitID, customer)) { switch (customer) { case "RegionH": if (da.AddUnit(UnitID, Room, type, customer)) { switch (type) { case "Soapdispenser": if (da.AddSoapDataSet(UnitID)) { return "Unit added to the system, as Soapdispenser"; } else { return "Unit added, but failed to add Soap data"; } default: return "Unit added, but type doesn't have any special function"; } } else { return "Unit not added to RegionH database"; } case "something": return "something!"; default: return "Customer not valid"; } } else { return "Error - Couldn't add unit to Customer table"; } }