jquery - jqGrid setselection true not work -

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i have jggrid list of object, want select rows on load page. code 

multiselect: true, loadcomplete: function(){         var ids = $("#listdafatturare").jqgrid('getdataids');      for(var = 0; <= ids.length; i++){         $("#list").jqgrid('setselection', i, true);       }  },

but don't run, in view see selected 1 row. don't understand problem, try debug code , apparently there no problems.

any ideas?

i resolved in mode:

 loadcomplete: function(){            var i, count, $grid = $("#list");         var rowarray = $("#list").jqgrid('getdataids');         (i = 0, count = rowarray.length; < count; += 1) {             $grid.jqgrid('setselection', rowarray[i], true);         }     },

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