Custom Button on view list

Greeting,

I added a button on a view list.

My goal is to select multiple lines to update the information of each row.

My function below works well if I select only 1 row, but do not work anymore if I select multiple row.

What should I change to be able to select multiple row ?

Thanks.

IdsList = POID.toList("|||");

info IdsList;

for each IdStr in IdsList

{

response = zoho.crm.searchRecords("PO_x_veh","(PO_installateur:equals:" + IdStr + ")");

number = 0;

planifie = 0;

date_depasse = 0;

verification = 0;

Facture_client_a_traiter = 0;

Termine = 0;

for each ResponseRecord in response

{

number = number + 1;

Etat = ResponseRecord.get("Etat");

if(Etat = "Planifié")

{

planifie = planifie + 1;

}

if(Etat = "Date dépassée - rapport non reçu")

{

date_depasse = date_depasse + 1;

}

if(Etat = "Vérification rapport à faire")

{

verification = verification + 1;

}

if(Etat = "Facture client à traiter")

{

Facture_client_a_traiter = Facture_client_a_traiter + 1;

}

if(Etat = "Terminé")

{

Termine = Termine + 1;

}

mp = Map();

mp.put("NB_V_hicules",number);

mp.put("NB_Planifi",planifie);

mp.put("NB_Date_d_pass_e_rapport_recevoir",date_depasse);

mp.put("NB_V_rification_rapport_faire",verification);

mp.put("NB_Facture_traiter",Facture_client_a_traiter);

mp.put("NB_facture_trait_e",Termine);

update = zoho.crm.updateRecord("PO_INSTALLATEURS",POID.toLong(),mp);

}

return "Mise à jour réussie :)";