July 2015
Beginner
452 pages
8h 34m
English
Content preview from Learning Ext JSBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The TreeStore
The TreeStore (Ext.data.TreeStore) is a special store in the Ext JS library. It is designed especially for working with the tree structure, which is Ext.tree.Panel in this case. As this class extends Ext.data.Store which in turn sequentially extends Ext.data.AbstractStore, you will notice that the behavior is similar to Ext.data.Store.
When we define our stores, we need to specify a data model. In this case (TreeStore), if we don't specify a model, then Ext JS will create an implicit data model using the Ext.data.NodeInterface class, which will lead to creating a model for our store.
Let's see an example of loading data from the server into our Ext.data.TreeStore class:
Ext.onReady(function(){ Ext.tip.QuickTipManager.init(); //Store ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.