Trigger Update Contact record using trigger when account record is updated

Trigger Update Contact record using trigger when account record is updated 


Trigger Class:

trigger updateContact on Account (after update, before update){
   List<Contact> contactList = new List<Contact>();
   List<Contact> contactList1 = new List<Contact>();
   for(Account acc: [SELECT Id,(SELECT Id,checkbox__c FROM Contacts)
         FROM Account WHERE Id in: Trigger.new]){
   If(acc.Contacts.size()>0){
     contactList.addAll(acc.Contacts);
      }
  }
   for(contact c:contactList){
          c.checkbox__c=true;
          contactList1.add(c);
   }


   try{


   update contactList1;




}catch(Exception e){




    system.debug('e');


 }






}


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Trigger Upsert Contact record using trigger when account record is updated














Upsert Trigger Class:












trigger upsert Contact on Account (after update, before update, after insert, before insert){








   List<Contact> contactList = new List<Contact>();






   List<Contact> contactList1 = new List<Contact>();






   for(Account acc: [SELECT Id,(SELECT Id,checkbox__c FROM Contacts) FROM Account 



                                                             WHERE Id in: Trigger.new]){






   If(acc.Contacts.size()>0){






     contactList.addAll(acc.Contacts);






      }






  }



   for(contact c:contactList){






          c.checkbox__c= false;



          contactList1.add(c);



   }






   try{






   Upsert contactList1;






}catch(Exception e){











    system.debug('e');







  }







}




















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