Inserting a record into an empty dataview fails

Hi everybody,

I have a navigation view, inside it is a list, which pushes a form into the navigation view when tapped on an item. There is also a "new" button for adding new records to the list.

If I tap an item I can edit it properly with my form. If I tap the new button when the list is populated with some data, then I can add a new record as well. But here is the problem: when the list is empty, sencha touch fails to add a record to the list. It throws me a rendering error. This is the exact message and stack trace:

Code:

Uncaught TypeError: Cannot read property 'getScroller' of undefined List.js?_dc=1413406501411:1101
Ext.define.doRefresh List.js?_dc=1413406501411:1101
Ext.define.onStoreAdd List.js?_dc=1413406501411:1304
Ext.define.doFire Controller.js?_dc=1413406499291:199
Ext.define.fire Controller.js?_dc=1413406499291:126
Ext.define.doDispatchEvent Dispatcher.js?_dc=1413406499066:347
Ext.define.dispatchEvent Dispatcher.js?_dc=1413406499066:328
Ext.define.doFireEvent Observable.js?_dc=1413406499730:262
Ext.define.fireEvent Observable.js?_dc=1413406499730:216
Ext.define.insert Store.js?_dc=1413406501479:1281
Ext.define.add Store.js?_dc=1413406501479:1223
Ext.define.addData Store.js?_dc=1413406501479:1043
Ext.define.oraResztvevoMentes Ora.js?_dc=1413406501300:170
Ext.define.doFire Controller.js?_dc=1413406499291:199
Ext.define.fire Controller.js?_dc=1413406499291:126
Ext.define.doDispatchEvent Dispatcher.js?_dc=1413406499066:347
Ext.define.dispatch ComponentDelegation.js?_dc=1413406499603:168
Ext.define.publish ComponentDelegation.js?_dc=1413406499603:242
Ext.define.doFire Controller.js?_dc=1413406499291:199
Ext.define.fire Controller.js?_dc=1413406499291:126
Ext.define.doDispatchEvent Dispatcher.js?_dc=1413406499066:347
Ext.define.dispatchEvent Dispatcher.js?_dc=1413406499066:328
Ext.define.doFireEvent Observable.js?_dc=1413406499730:262
Ext.define.fireAction Observable.js?_dc=1413406499730:247
Ext.define.onTap Button.js?_dc=1413406501395:644
Ext.define.doFire Controller.js?_dc=1413406499291:199
Ext.define.fire Controller.js?_dc=1413406499291:126
Ext.define.doDispatchEvent Dispatcher.js?_dc=1413406499066:347
Ext.define.dispatch Publisher.js?_dc=1413406499304:65
Base.implement.callParent sencha-touch.js:4725
Ext.define.dispatch Dom.js?_dc=1413406499272:300
Ext.define.doPublish Dom.js?_dc=1413406499272:348
Ext.define.publish Dom.js?_dc=1413406499272:307
Base.implement.callSuper sencha-touch.js:4804
Ext.define.publish TouchGesture.js?_dc=1413406499363:179
Ext.define.onRecognized TouchGesture.js?_dc=1413406499363:164
Ext.define.fire Recognizer.js?_dc=1413406499461:58
Ext.define.onTouchEnd Tap.js?_dc=1413406499478:43
Ext.define.invokeRecognizers TouchGesture.js?_dc=1413406499363:229
Ext.define.onTouchEnd TouchGesture.js?_dc=1413406499363:406
Ext.define.onEvent TouchGesture.js?_dc=1413406499363:134
(anonymous function) sencha-touch.js:3217

I am using Sencha Touch 2.4 with Sencha Architect 3.1

This is the code I am using:

Code:

if(this.getOraResztvevoLista().getSelectionCount() === 0)
{
    //New record
    this.getOraResztvevoLista().getStore().addData({
        loId: this.getLo().getValue(),
        loNev: this.getLo().getRecord().get('nev'),
        lovas: this.getLovas().getValue(),
        szobaId: this.getSzoba().getValue(),
        szobaNev: Ext.isEmpty(this.getSzoba().getValue()) ? '' : this.getSzoba().getRecord().get('nev'),
        megjegyzes: this.getMegjegyzes().getValue()
    });
}
else
{
    //Updating an existing record
    var record = this.getOraResztvevoLista().getSelection()[0];
    record.set('loId', this.getLo().getValue());
    record.set('loNev', this.getLo().getRecord().get('nev'));
    record.set('lovas', this.getLovas().getValue());
    record.set('szobaId', this.getSzoba().getValue());
    record.set('szobaNev', Ext.isEmpty(this.getSzoba().getValue()) ? '' : this.getSzoba().getRecord().get('nev'));
    record.set('megjegyzes', this.getMegjegyzes().getValue());
}
this.getHomePanel().pop();

If I comment out the addData() method, then the script runs without any errors. Of course the row doesn't get added that way.

Any help is much appreciated!

Inserting a record into an empty dataview fails