ExtJs 4.1 TypeError: 'listener.fireFn is undefined' on grid selectionchange event in controller -

it's similar question posted issue http://www.sencha.com/forum/showthread.php?245591

here code grid (please note commented listener declared in grid works fine)

ext.define( 'fast.view.sales.salesforecastdealersgrid ' ,{     extend: 'ext.grid.panel',     alias : 'widget.salesforecastdealersgrid' ,     selmodel: ext.create( 'ext.selection.checkboxmodel' ),// sm,     requires:[ 'ext.toolbar.paging'],     columnlines: true,     store: 'sales.salesforecastdealers', //'sales.productbyaccount',      columns: [{text: 'dealer id',hidden: true ,flex:1,dataindex:'dealerid' },               {text: 'customer name',flex:1,sortable: true,dataindex: 'dealername' },               {text: 'sales ids',hidden: true,flex:1,sortable: false ,dataindex:'salesids' }],         initcomponent: function () {          .dockeditems = [         {             xtype: 'pagingtoolbar' , dock:'bottom' ,             store: 'sales.salesmonthfct' ,//localstore,             displayinfo: true ,             displaymsg: 'displaying productbyaccount {0} - {1} of {2}' +'&nbsp &nbsp &nbsp',             emptymsg: "no productbyaccount display"         }];         .callparent(arguments);        } /*, listeners:{         selectionchange : function(model, records) {        // var records = grid.getselectionmodel().getselection();        alert('section changed handler');     }}*/      });  

and controller

ext.define( 'fast.controller.sales.salesforecastcontroller', {     extend: 'ext.app.controller',      stores: ['sales.salesweekfct' ,'sales.salesmonthfct' ,'sales.salesforecastdealers' ],     models: [ 'sales.salesweekfctmodel', 'sales.salesmonthfctmodel' ],     views: ['sales.salesforecastweeklygrid' ,'sales.salesforecastmonthlygrid' ,'sales. salesforecastdealersgrid' ],     refs: [{ref: 'salesforecastweeklygrid',selector: 'salesforecastweeklygrid' }           ,{ref: 'salesforecastmonthlygrid' ,selector: 'salesforecastmonthlygrid' }           ,{ref: 'salesforecastdealersgrid ',selector: 'salesforecastdealersgrid '}           ],         init: function () {     .control({     //'salesforecastdealersgrid [action=change]': {selectionchange: this.dealerselectionchange},     'salesforecastdealersgrid ': {selectionchange: .dealerselectionchange}     });     },      dealerselectionchanged : function (model, records) {     //var records = grid.getselectionmodel().getselection();        alert( 'controllers section changed handler' );     } }); 

as notice i've commented line "'salesforecastdealersgrid [action=change]': {selectionchange : this.dealerselectionchange}," because can't find documentation '[action=change]' , not fire in case.

with code when click on grid row i'm getting error message in console

typeerror: listener.firefn undefined ...listener && listener.firefn.apply(listener.scope || me.observable, args) === fal... 

any idea can try next?

thank in advance.

your controller not have function:

selectionchange: .dealerselectionchange 

because function name is:

dealerselectionchanged : function (model, records)