public List<string> GetImportableItems(int packageId, int itemTypeId, Type itemType, ResourceGroupInfo group) { List<string> items = new List<string>(); // get service id int serviceId = PackageController.GetPackageServiceId(packageId, group.GroupName); if (serviceId == 0) return items; // Mail provider MailServer mail = new MailServer(); ServiceProviderProxy.Init(mail, serviceId); if (itemType == typeof(MailDomain)) items.AddRange(mail.GetDomains()); return items; }