Summary

In this chapter, you learned the basics of creating tree panels and the available variants of the way in which we can use tree components.

The Ext JS library has implemented a very robust component that supports all the common configurations we need when developing our applications to fit the customer's needs. As with all components in the library, it is very important to know in which situation we should use which component and the style of the component.

Remember that when developing an Ext JS application, we don't need to know all the properties of the classes by memory. We can always go and search in the API documentation.

In the next chapter, we are going to see the Ext JS Architecture and you will learn more about the MVC and MVVM patterns. Also, we will see data binding (view models), routers, and so on, which are used to create a more robust application.