public PromotionCodeDTO GetPromotionCodes(int campaignId, string codes) { if (string.IsNullOrEmpty(codes) || campaignId == 0) { return(new PromotionCodeDTO { Success = true, Message = "" }); } var campaign = new UmbracoHelper(UmbracoContext.Current).TypedContent(campaignId); string messages = string.Empty; bool success = true; var lstCodes = string.Empty; if (campaign != null) { lstCodes = campaign.CoaleseField(WellknownProperties.PromotionCodes); if (!string.IsNullOrEmpty(lstCodes)) { var arrCodes = lstCodes.SplitIntoCollection(); foreach (var code in codes.SplitIntoCollection()) { if (arrCodes.Any(code.Contains)) { continue; } messages += code + ", "; } } else { success = false; messages = string.Format("Code(s) {0} are invalid", codes.Replace(";", ", ")); } } if (!string.IsNullOrEmpty(messages)) { success = false; messages = string.Format("Code(s) {0} are invalid", messages.Substring(0, messages.Length - 2)); } return(new PromotionCodeDTO { Success = success, Message = messages }); }