在网格上的selectionchange上显示不同的项目

    Ext.getCmp(\'myform\').hide() // or  .show()

    listeners: { selectionchange: function () {...}

        listeners:{
                itemclick:function(view, record, item, index, e ) {
                var v = record.get(\'firstName\');
                ....
                    ....
                     }
                  }

selectionchange

listeners: {
    selectionchange: function (view, selections, options) {
        console.log(view, selections, options);
    }
}

selections

record = selections[0]