Adding chart Item click in the Controller

Hi,

We are using Ext Js 4.2.2.

We need to implement the Stacked column charts ItemClick event in the controller.

I have tried adding event to the controller as below.

Code:

Chart: 

{
                                        xtype: 'chart',                                       
                                        id: 'SummaryChart',
                                        itemId: 'SummaryChart',
                                        action: 'SummaryDrillDown',
                                        axes: [
                                            {
                                                type: 'Numeric',
                                                : 'left',
                                                fields: ['Physical',
                                                    'Contractual'],                                              
                                                grid: true,
                                                minimum: 0
                                            },
                                            {
                                                type: 'Category',
                                                : 'bottom',
                                                fields: ['Sec']
                                            }
                                        ],
                                        series: [
                                            {
                                                type: 'column',
                                                axis: 'left',
                                                xField: 'Sec',
                                                yField: [
                                                    'Physical',
                                                    'Contractual'
                                                ],                                               
                                                stacked: true,


                                            }
                                        ]
                                    }

Controller:

 Ext.define('MasterLayout.controller.SummaryController', {
    extend: 'Ext.app.Controller',


    init: function () {
        this.control({
            'container button[action=Summarysearch]': {
                click: this.onbtnSummarySearchClick
            },
            'container textfield[action=Summarysearch]': {
                keypress: this.ontxtSummarySearchKeypress
            },
            'container chart[action=SummaryDrillDown]': {
                itemclick: this.onColumnItemClick
            }
        });
    },
    onColumnItemClick: function (column) {
        alert("ItemClick");       
    },
    onbtnSummarySearchClick: function (button) {
       alert("button click");       
    },
    ontxtSummarySearchKeypress: function (textfield, e, eOpts) {
        alert("key press");       
    }
});

Button and keypress events are working. But ItemClick event is not working.

When I click on the item, the event is not firing. Its not showing error.

Please help!

Regards,

SivaPrasad.B

Adding chart Item click in the Controller