Ext JS 8.0 introduces horizontal buffered rendering for data grids. Rather than rendering every column simultaneously, the framework renders only visible columns plus a configurable buffer zone.
Key benefits include:
▪ Improved scrolling performance for wide datasets
▪ Reduced DOM load and memory usage
▪ Efficient handling of tables with hundreds or thousands of columns
This improvement is particularly valuable for enterprise analytics dashboards, financial reporting systems, and real-time data monitoring tools where large datasets are common.

Lockable Grid Plugin for the Modern Toolkit
Ext JS 8.0 introduces a new Lockable Grid Plugin for the Modern Toolkit, bringing native column locking functionality to enterprise data grids.
Features include:
▪ Fixed columns during horizontal scrolling
▪ Synchronized scrolling between locked and unlocked sections
▪ Full compatibility with editing, grouping, and filtering features
This allows users working with wide data tables to keep critical fields — such as ID, name, or status — consistently visible while navigating large datasets horizontally.

Impact for Enterprise Development Teams
These grid improvements allow development teams to:
▪ Build high-performance data grids without custom performance workarounds
▪ Deliver better user experience in large and complex data tables
▪ Reduce time spent on manual rendering optimizations
Together, buffered column rendering and the Lockable Grid Plugin strengthen Ext JS's position as a framework designed for data-intensive enterprise applications.

Free Trial: https://www.sencha.com/products/extjs/evaluate/

Availability
Ext JS 8.0 is available now for existing customers. A 30-day free trial is available for new users at www.sencha.com.

About Sencha
Sencha is a leading provider of enterprise-grade application development tools, helping organizations build complex, data-driven applications faster and more efficiently. Sencha serves over 10,000 customers, including 60% of the Fortune 100.