Toolbar cannot disable item

Suite and Optimus Suite 5
#1

I’m trying to disable an item of my toolbar, but I always get an error: “Uncaught TypeError: Cannot read property ‘disableItem’ of undefined”.
Although I checked the toolbar before it not “undefined” even I can log the method disableItem on console.
But I have no idea why I got error when I call this method either with or without argument.

Here is my code:

toolbar = tabbar.attachToolbar(); toolbar.loadStruct(XML_TEMPLATE); console.log(toolbar.disableItem); toolbar.disableItem('');

I got the error at the last line.
Anyone can help me to explain this case?

Thanks!

#2

loadStruct is async. command
You need to use the after loading callback to execute any operations against toolbar’s items

toolbar.loadStruct(XML_TEMPLATE, function(){ toolbar.disableItem(''); });