title: How to call controller function in view in extjs
body: <p>I have one function in controller. It will return a value. I have called that function in view using <code>renderer:this.getController('test.controller.Barchart').change();</code> but it is not working. I am getting an error wind has no method <code>getController()</code>. Can anybody tell me how to call it correctly?</p>