TabPanel ActiveItem Error Msg

[izak18]

Hi everbyody,

This is my case, I have a TabPanel, and when I try to load a view with the activeItem configured, it works fine, like this:

documentoView = Ext.extend(Ext.TabPanel,{
        fullscreen: true,
	activeItem: 1,
	items: [
	{
		layout: 'fit',
		id : 'tab1',
		title: 'title 1',
		items: [formDoc]
	},
	{
		layout: 'fit',
		id : 'tab2',
		title: 'title 2',
		items: [detalleTabPanel]
	},
	{
		layout: 'fit',
		id : 'tab3',
		title: 'title 3',
		items: [planFactPanelPrincipal]
	}]
});

But, in my case, I have to put a listener and not use activeItem config, something like this:

listeners: {		beforerender: function (thisComponent) {
			if(something){
					thisComponent.setActiveItem('tab2');
			}
		}
	}

And I get a error message:

Uncaught TypeError: Cannot call method 'addCls' of undefined

What can I do?
Thanks in advance!

[mitchellsimoens]

Try passing an index or the actual component instance.

[izak18]

Thanks for the reply, my solution was put the setactiveitem in afterrender event, so the slide is ok, because in 'render' was not.