Comments on: ExtJS: Migrating from 2.2.1 to 3.0 http://www.akawebdesign.com/2009/08/19/extjs-migrating-from-2-2-1-to-3-0/ Longtime nerd. Rockstar developer. Wed, 18 Apr 2012 11:52:20 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Arthur Kay http://www.akawebdesign.com/2009/08/19/extjs-migrating-from-2-2-1-to-3-0/#comment-60 Arthur Kay Wed, 27 Jan 2010 14:55:35 +0000 http://blog.akawebdesign.com/?p=219#comment-60 Doug, You are correct in pointing out that I didn't say what exactly I had to fix to complete the upgrade from 2.2.1 to 3.0.0 To fix the "toolbar.items.itemAt(0).items is undefined" error, it's simply a matter of using the updated API references. That line should have been (in my particular case) "toolbar.items.itemAt(0).menu". As for the "targetNode is undefined" error I saw, my problem was that I attempted to expand all nodes in my tree before the nodes had finished loading. I moved my "tree.expandAll()" call into the "render" event to avoid that issue. That was it for my application. Like I said, I didn't have to do much to get things working. Doug,

You are correct in pointing out that I didn’t say what exactly I had to fix to complete the upgrade from 2.2.1 to 3.0.0

To fix the “toolbar.items.itemAt(0).items is undefined” error, it’s simply a matter of using the updated API references. That line should have been (in my particular case) “toolbar.items.itemAt(0).menu”.

As for the “targetNode is undefined” error I saw, my problem was that I attempted to expand all nodes in my tree before the nodes had finished loading. I moved my “tree.expandAll()” call into the “render” event to avoid that issue.

That was it for my application. Like I said, I didn’t have to do much to get things working.

]]> By: Doug http://www.akawebdesign.com/2009/08/19/extjs-migrating-from-2-2-1-to-3-0/#comment-59 Doug Wed, 27 Jan 2010 00:57:28 +0000 http://blog.akawebdesign.com/?p=219#comment-59 so you never even told us what you changed ?!?! so you never even told us what you changed ?!?!

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