saas-platform/frontend/saas-web/app/view/test/myform/FormPanel.js

Ext.define('saas.view.test.myform.FormPanel',{
    extend: 'saas.view.core.form.FormPanel',
    xtype: 'test-myform-formpanel',

    controller: 'test-myform-formpanel',
    viewModel: {
        type: 'test-myform-formpanel'
    },

    defaultItems: [{
        xtype: 'detailGridField',
        store: Ext.create('Ext.data.Store', {
            fields: ['col1', 'col2'],
            data: []
        }),
        columns: [{
            text : "col1", 
            editor : {
                xtype : "textfield"
            }, 
            dataIndex : "col1", 
            width : 120.0
        }, {
            text : "col2", 
            editor : {
                xtype : "textfield"
            }, 
            dataIndex : "col2"
        }]
    }]
});