A core strength of Ext JS is its component design. You can easily extend the default components to meet your needs, and extensions will be encapsulated within just those components. As a result, your development teams can create even the largest applications without stepping on each other’s code.

When creating a cross browser RIA, choosing a framework with a surplus of components is where most of us look first. There comes a time, however, when the framework might not have the specific component or functionality we need. Here, selecting a framework that enables you the flexibility to enhance and expand its offering becomes very important.

Ext JS components let developers deliver on an incredible variety of browsers and on more operating systems using the same code — over ten years of browsers in one release. On modern browsers, Ext JS utilizes HTML5 features and falls back to alternatives on older browsers. Whether you’re using Ext JS’ built-in UI components, using the new Charting package, or theming your application, Ext JS makes it easy to build an app that gives you the power of the web regardless of what browser your customer uses.

Ext JS has all the rich UI functionality that most applications require coupled with a vibrant community creating impressive extensions. However, sometimes, you will want to add extra capabilities to a component for which an extension is not available. Ext's elegant design allows us to explore our creativity by adding new features to existing widgets. We will explore several ways to approach this advanced task. Our team has huge expertise in ExtJS component development.

When an application developer needs to enhance, or change the functioning of an existing Ext Component there are several options open each of which has advantages and disadvantages. Ext classes down the hierarchy add their own Template methods which are appropriate to their own capabilities.

Silicon Info has explored different ways to implement custom functionality and specifically how to create reusable plugins without creating a fragile class hierarchy. Using plugins to augment Ext's baseline functionality is one of the best approaches when you want to be able to mix and match functionality. The most important concept to grasp is that we can provide additional functionality by augmenting existing methods within a component that are guaranteed to be executed during a components lifecycle.

EstJS Projects