Browsed by
Tag: performance

The Ext JS datachanged event.

The Ext JS datachanged event.

During my recent performance testing with Ext JS I came across the Ext.data.Store datachanged event, which was causing some pretty large performance issues.  The datachanged event is documented as fired “when the data cache has changed in a bulk manner (e.g., it has been sorted, filtered, etc.) and a widget that is using this Store as a Record cache should refresh its view.”  This seems to be used often in the specific application I have been looking at, due to the…

Read More Read More

ExtJS Introduction

ExtJS Introduction

I have spent a lot of time lately working with the Ext JS javascript library, and decided it would be worth it to share my tips, tricks, hints, and overall experience.  I originally started using the library a couple years ago during my senior projects class in college.  There still seems to be a web page up describing the project…  Overall, the project didn’t end too well – but it did get me a good start in web development. My…

Read More Read More