kendo date dialog on click of input box

I have a kendo Date picker it is functioning well.

On click of icon in input box I am able to open date dialog and it is working. But I want this dialog should also open in click of input box as well..

            <h4>Select date:</h4>
            <input kendo-date-picker
             ng-model="dateString"
             k-ng-model="dateObject" />

Demo : http://ift.tt/1o9VQnm

Can anyone guide me ?