2.2. Working with Data in Ext JS
Having all these widgets is great! It allows us to create some truly great web UIs with a minimum of effort. We can create applications that not only look fantastic but that expose advanced functionality to the user.
However, at the end of the day, nearly all applications have to have some data to operate on. It's one thing to be able to create a Grid, but a Grid isn't much good without information to put into it. With many other libraries, data is something that is left entirely to you. Sure, the library may give you an easy way to create a Grid, but putting data into it is your job.
With Ext JS, you can do things that way too. You can take control of every last detail and take all responsibility for populating ...