public string GetGroupInfoListByDepartment(string departmentID, bool recursive) { if (!header.VerifyCredentials(header.UserName, header.Password, header.Type)) { return(string.Empty); } Guid gDepartmentID = (Guid)XmlSerializer.Deserialize(departmentID); return(XmlSerializer.Serialize(OrganizationPublicHelper.GetGroupInfoListByDepartment(gDepartmentID, recursive))); }