public List <string> GetEmptyRequiredFields(string entityId)
 {
     using (GlobalCrmManager crmGlobalMgr = new GlobalCrmManager())
     {
         var list = crmGlobalMgr.GetAllEmptyRequiredFieldsNamesForRecord(CrmEntityName, crmGuidColumnName, entityId).ToList();
         return(CrmToModelMapper <Contact> .GetCrmToModelMapper(list).ToList());
     }
 }
        public override IEnumerable <string> GetRequiredFields()
        {
            var list = base.GetRequiredFields();

            return(CrmToModelMapper <Contact> .GetCrmToModelMapper(list).ToList());
        }