Beyond Rows and Columns: Interactive Ext JS Grids and ReExt for React Developers

They may need to open another screen to adjust a setting, inspect a trend, or perform a routine action. In enterprise applications, these interruptions can slow down workflows and make even familiar tasks unnecessarily complicated.

One solution is to make the grid more interactive. Ext JS widget columns let developers place components directly inside grid cells. And for teams building with React, ReExt creates a way to use Ext JS components without rebuilding every piece of the interface.

Why traditional data grids aren't always enough

Tables are excellent at organizing information. Rows and columns make it possible to scan large datasets and compare records.

But some tasks are easier when the interface provides more than text.

Imagine an operations dashboard where users need to monitor progress, adjust a numeric setting, and understand how performance has changed over time.

A plain grid could show a number, a status, and a historical value. An interactive grid could provide a progress bar, a slider, and a sparkline.

The distinction is simple: instead of making users leave the table to understand or change information, the grid can provide selected interactions where they are needed.

How Ext JS widget columns improve grid customization

Ext JS supports widget columns that display UI components inside grid cells. The component can be bound to the current record so that the widget represents the data associated with that row.

Sencha's widget-column walkthrough demonstrates examples using sliders and sparklines, alongside other component options such as buttons and progress indicators.

These patterns are useful when the component communicates something meaningful.

A slider can provide a direct way to adjust a value. A sparkline can show a trend without taking up the space of a full chart. A button can expose a relevant action next to the record it affects.

The design principle is to make interaction purposeful, not to add controls simply because the framework allows it.

ReExt: Bringing Ext JS components into React

Many teams use React to structure their applications but still need advanced, data-rich UI components.

ReExt, developed by Sencha, lets React applications use Ext JS components through a React-facing API. This creates an option for teams that want to combine React application development with Ext JS components such as grids, charts, and forms.

For example, a team could use React for routing and application-level composition while using an Ext JS grid for a data-intensive screen.

This approach can be particularly relevant when an organization already has Ext JS components or wants to evaluate them for new React-based interfaces.

ReExt coding style: Familiar JSX, powerful configuration

ReExt uses JSX syntax, with xtype identifying the Ext JS component and config carrying its Ext JS configuration.

A simplified example:

import ReExt from '@sencha/reext';

function PerformanceGrid() {

return (

<ReExt

xtype=" grid"

config={{

title: 'Performance',

columns: [

{

text: 'Metric',

dataIndex: 'metric',

flex: 1

},

{

text: 'Current Value',

dataIndex: 'value',

width: 150

}

]

}}

style={{ width: '100%', height: 400 }}

/>

);

}

This illustrates the coding style rather than a complete running application; a real grid also needs a configured data source and the appropriate ReExt setup.

The key advantage is that developers can define the component in JSX while using Ext JS configuration to describe its behavior.

Can ReExt support richer grid experiences?

ReExt provides access to Ext JS components from React, making it relevant when a project needs an Ext JS Data Grid inside a React application.

For advanced features such as widget columns, developers should verify the required configuration against the specific Ext JS version and toolkit. The original widget-column examples use Ext JS configuration, and those details remain important when integrating the functionality through ReExt.

That means teams should evaluate the complete interaction — not just whether the grid renders. Test data binding, editing, sorting, filtering, accessibility, and how widgets behave when records are updated.

Choosing between a React Grid component and ReExt

A standalone React Grid component may be the natural choice when a project is built around React-specific components and APIs.

ReExt is worth considering when a team wants to use Ext JS components within a React application, especially if reusing existing Ext JS functionality is part of the goal.

The decision should account for the application's architecture, the grid features required, the team's skills, licensing, and long-term maintenance.

Don't confuse more widgets with better usability

Interactive grids can reduce navigation and help users interpret data. They can also introduce clutter if every cell contains a control.

Choose widgets based on user needs. Use visual indicators for status, sparklines for trends, and controls for actions users genuinely perform. Keep other cells simple.

Then test the grid with realistic datasets and workflows. Performance, keyboard navigation, accessible labels, and clear feedback after edits matter as much as the visual design.

Final thoughts

A useful data grid does more than display records. It helps people understand information and complete tasks efficiently.

Ext JS widget columns provide a way to add purposeful interactions directly inside grid cells. ReExt extends the possibilities for teams building React applications by making Ext JS components available through JSX and Ext JS configuration.

For teams evaluating enterprise UI architecture, the important question isn't simply which framework has more components. It's which approach gives users the functionality they need while keeping the application maintainable.

Explore the original article: How to Quickly Customize Ext JS Data Grid — Part 5 of 6.

Learn about ReExt: ReExt Made Simple: Everything You Need to Know to Get Started.

#React #ExtJS #ReExt #JavaScript #EnterpriseSoftware