The source code

    Ext.onReady(function(){

        Ext.QuickTips.init();

        // turn on validation errors beside the field globally
        Ext.form.Field.prototype.msgTarget = 'side';

        var bd = Ext.getBody();

    //   Define the Grid data and create the Grid
        var myData = [
            ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],
            ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],
            ['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],
            ['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],
            ['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],
            ['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],
            ['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],
            ['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],
            ['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],
            ['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],
            ['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],
            ['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],
            ['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],
            ['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],
            ['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],
            ['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],
            ['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],
            ['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],
            ['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],
            ['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],
            ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],
            ['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],
            ['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],
            ['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],
            ['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],
            ['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],
            ['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],
            ['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],
            ['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']
        ];

        var ds = new Ext.data.Store({
            reader: new Ext.data.ArrayReader({}, [
                {name: 'company'},
                {name: 'price', type: 'float'},
                {name: 'change', type: 'float'},
                {name: 'pctChange', type: 'float'},
                {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'},

    //          Rating dependent upon performance 0 = best, 2 = worst
                {name: 'rating', type: 'int', convert: function(v, rec) {
                       if (rec[3] < 0) return 2;
                       if (rec[3] < 1) return 1;
                       return 0;
                   }
                }
            ])
        });
        ds.loadData(myData);

        // example of custom renderer function
        function italic(value){
            return '' + value + '';
        }

        // example of custom renderer function
        function change(val){
            if(val > 0){
                return '' + val + '';
            }else if(val < 0){
                return '' + val + '';
            }
            return val;
        }
        // example of custom renderer function
        function pctChange(val){
            if(val > 0){
                return '' + val + '%';
            }else if(val < 0){
                return '' + val + '%';
            }
            return val;
        }

        // render rating as "A", "B" or "C" depending upon numeric value.
        function rating(v) {
            if (v == 0) return "A"
            if (v == 1) return "B"
            if (v == 2) return "C"
        }

        // the DefaultColumnModel expects this blob to define columns. It can be extended to provide
        // custom or reusable ColumnModels
        var colModel = new Ext.grid.ColumnModel([
            {id:'company',header: "Company", width: 160, sortable: true, locked:false, dataIndex: 'company'},
            {header: "Price", width: 55, sortable: true, renderer: Ext.util.Format.usMoney, dataIndex: 'price'},
            {header: "Change", width: 55, sortable: true, renderer: change, dataIndex: 'change'},
            {header: "% Change", width: 65, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
            {header: "Last Updated", width: 80, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'},
            {header: "Rating", width: 40, sortable: true, renderer: rating, dataIndex: 'rating'}
        ]);

        bd.createChild({tag: 'h2', html: 'Using a Grid with a Form'});

    /*
     *    Here is where we create the Form
     */
        var gridForm = new Ext.FormPanel({
            id: 'company-form',
            frame: true,
            labelAlign: 'left',
            title: 'Company data',
            bodyStyle:'padding:5px',
            width: 750,
            layout: 'column',    // Specifies that the items will now be arranged in columns
            items: [{
                columnWidth: 0.60,
                layout: 'fit',
                items: {
                    xtype: 'grid',
                    ds: ds,
                    cm: colModel,
                    sm: new Ext.grid.RowSelectionModel({
                        singleSelect: true,
                        listeners: {
                            rowselect: function(sm, row, rec) {
                                Ext.getCmp("company-form").getForm().loadRecord(rec);
                            }
                        }
                    }),
                    autoExpandColumn: 'company',
                    height: 350,
                    title:'Company Data',
                    border: true,
                    listeners: {
                        render: function(g) {
                            g.getSelectionModel().selectRow(0);
                        },
                        delay: 10 // Allow rows to be rendered.
                    }
                }
            },{
                columnWidth: 0.4,
                xtype: 'fieldset',
                labelWidth: 90,
                title:'Company details',
                defaults: {width: 140, border:false},    // Default config options for child items
                defaultType: 'textfield',
                autoHeight: true,
                bodyStyle: Ext.isIE ? 'padding:0 0 5px 15px;' : 'padding:10px 15px;',
                border: false,
                style: {
                    "margin-left": "10px", // when you add custom margin in IE 6...
                    "margin-right": Ext.isIE6 ? (Ext.isStrict ? "-10px" : "-13px") : "0"  // you have to adjust for it somewhere else
                },
                items: [{
                    fieldLabel: 'Name',
                    name: 'company'
                },{
                    fieldLabel: 'Price',
                    name: 'price'
                },{
                    fieldLabel: '% Change',
                    name: 'pctChange'
                },{
                    xtype: 'datefield',
                    fieldLabel: 'Last Updated',
                    name: 'lastChange'
                }, {
                    xtype: 'panel',
                    layout: 'table',
                    layoutConfig: {
                        columns: 4
                    },
                    anchor: '100%',
                    defaults: {
                        border: false,
                        layout: 'form',
                        labelWidth: 15,
                        style: {
                            paddingRight: '10px'
                        }
                    },

    // A radio group: A setValue on any of the following 'radio' inputs using the numeric
    // 'rating' field checks the radio instance which has the matching inputValue.
                    items: [{
                        cellCls: 'x-form-item',
                        xtype: 'label',
                        text: 'Rating',
                           width: 98
                    }, {
                        items: {
                            xtype: 'radio',
                            name: 'rating',
                            inputValue: '0',
                            fieldLabel: 'A'
                        }
                    }, {
                        items: {
                            xtype: 'radio',
                            name: 'rating',
                            inputValue: '1',
                            fieldLabel: 'B'
                        }
                    }, {
                        items: {
                            xtype: 'radio',
                            name: 'rating',
                            inputValue: '2',
                            fieldLabel: 'C'
                        }
                    }]
                }]
            }],
            renderTo: bd
        });

        //  Create Panel view code. Ignore.
        createCodePanel('form-grid.js', 'View code to create this Form');
    });