Try with editrules : {edithidden:true} in colModel

Regards

Tony

        $("#view_slist").click(function(){
            var gr = jQuery("#slist").jqGrid('getGridParam','selrow');
            if( gr != null ){
               
                $('#trv_nomprenom').hide();
                $('#trv_nom').show();
                $('#trv_prenom').show();
                $('#trv_politesse').show();
                $('#trv_cle').show();
               
                for ( i = 0; i < activModelName.length; i++ ) {
                    $('#trv_'+activModelName[i]).show();
                }
                $("#Act_Buttons").hide();
            }
        });
and hide the Act_Buttons

the only problem is that an  event click is already bound to #view_slist and I did'nt know if my function is executed
before form is build ?

Nevertheless, it seems OK !

How to show hidden fields in viewGridRow.

The doc says :

Hidden fields are included in the form with the display:none property of the table row

There is not event like beforeShowForm

Thanks.