I've followed one of the demonstrations:

Java Scrpt code jQuery(“#list4”).jqGrid({ datatype: “local”, height: 250, colNames:['Inv No','Date', 'Client', 'Amount','Tax','Total','Notes'], colModel:[ {name:'id',index:'id', width:60, sorttype:”int”}, {name:'invdate',index:'invdate', width:90, sorttype:”date”}, {name:'name',index:'name', width:100}, {name:'amount',index:'amount', width:80, align:”right”,sorttype:”float”}, {name:'tax',index:'tax', width:80, align:”right”,sorttype:”float”}, {name:'total',index:'total', width:80,align:”right”,sorttype:”float”}, {name:'note',index:'note', width:150, sortable:false} ], multiselect: true, caption: “Manipulating Array Data” }); var mydata = [ {id:”1″,invdate:”2007-10-01″,name:”test”,note:”note”,amount:”200.00″,tax:”10.00″,total:”210.00″}, {id:”2″,invdate:”2007-10-02″,name:”test2″,note:”note2″,amount:”300.00″,tax:”20.00″,total:”320.00″}, {id:”3″,invdate:”2007-09-01″,name:”test3″,note:”note3″,amount:”400.00″,tax:”30.00″,total:”430.00″}, {id:”4″,invdate:”2007-10-04″,name:”test”,note:”note”,amount:”200.00″,tax:”10.00″,total:”210.00″}, {id:”5″,invdate:”2007-10-05″,name:”test2″,note:”note2″,amount:”300.00″,tax:”20.00″,total:”320.00″}, {id:”6″,invdate:”2007-09-06″,name:”test3″,note:”note3″,amount:”400.00″,tax:”30.00″,total:”430.00″}, {id:”7″,invdate:”2007-10-04″,name:”test”,note:”note”,amount:”200.00″,tax:”10.00″,total:”210.00″}, {id:”8″,invdate:”2007-10-03″,name:”test2″,note:”note2″,amount:”300.00″,tax:”20.00″,total:”320.00″}, {id:”9″,invdate:”2007-09-01″,name:”test3″,note:”note3″,amount:”400.00″,tax:”30.00″,total:”430.00″} ]; for(var i=0;i<=mydata.length;i++) jQuery("#list4").jqGrid('addRowData',i+1,mydata);

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