I am using below function and it contains a list variable by default list separator is comma (',') but I would like to use other separator in list like # or @ .. So how can I do that so the  content in list variable will be separated by "#" or "@" instead of "," 

see below function :

void API.Conver_MasterLineup(string mrkt, string lineupID, string lineupName, string lineupType, string ProviderName, string ProID, string SerArea)

{

lineID = List();

for each rec in lineups_Zipcode[Market == input.mrkt && providerID == input.ProID]

{

lineID.add( rec.lineupName);

}

st = Master_lineup [Market == input.mrkt && ProviderID == input.ProID ].count();

if ( st  < 1)

{

    insert into Master_lineup

    [

        Added_User = zoho.loginuser

        lineupID_list = lineID 

    ]

}

} 

Thanks 

Arfater