sapui5 - Bind input field not work -

i have problem when try mapping model in view. have view view contains

    <form:simpleform         minwidth="1024"         maxcontainercols="2"         editable="true"         layout="responsivegridlayout"         title="dimensione prodotto"         labelspanl="3"         labelspanm="3"         emptyspanl="4"         emptyspanm="4"         columnsl="1"         columnsm="1"         class="editableform">          <label text="codice" />         <input value="{elements/idcodprod/value}" id="idcodprod" />         <label text="descrizione" />         <input value="{iddescprod/value}" id="iddescprod" />         <label text="famiglia" />         <input value="{idfamiglia/value}" id="idfamiglia" />      </form:simpleform> 

and model (jsonmodel)

{     "elements":{         "idcodprod":{             "id":"idcodprod",             "enabled":true,             "required":true,             "value":"123"         },         "iddescprod":{             "id":"iddescprod",             "enabled":true,             "required":true         },         "idfamiglia":{             "id":"idfamiglia",             "lookup":"tab_fam",             "enabled":true,             "required":true         }     } } 

how can ibind value of idcodprod in input?? set model view correctly in first input not see "123"

ok, solve problem: replace {elements/idcodprod/value} {/elements/idcodprod/value}