jQuery Grid Plugin - jqGrid

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I have 2 classes, User.java and Bank.java . Each User has a reference to a Bank.

@Entity
public class Utilisateur {

@ManyToOne
private Banque banque;

When I add new user i must select a bank from a list of Banks. So my question is how to load a list of objects(from DB) to a "select" form in jqGrid, and knowing that this selected data will be registered in the DB as an Integer (the foreign key which refer to the Bank table),what i must dowing to synchronize the record selected and the primary key in the DB .

Help pleaze,