We are currently running Ext 2.2.1.
We want to upgrade to the latest 3.x branch (currently 3.2.1).
To fit Ext 2.2.1 to our visual requirements we “themed” the CSS file quite a bit (~150 changes).
Looking at the 3.2.1 CSS, we see a very large amount of changes in comparison to 2.2.1 (breaking to structure/visual, changes in specific widgets, etc).
This makes it very hard for us to upgrade our Ext version, as it will require us to re-theme the new CSS in new and different ways.
Has anyone else faced this issue?
Can you please share your thoughts and experiences?
How fundamentally different are the CSSs?
How long did the upgrade process take (for what size of an application)?
Was it possible to receive assistance (through Support or other) from the company?
1. Patching ext-all.css makes upgrading difficult. Instead, create an ext-overrides.css file with your changes and include it after ext-all.css.
2. The major changes between an Ext 2 and 3 stylesheet are:
- The Ext 3 css is split into structural and visual rules, but the css itself hasn't changed very much.
- Buttons are no longer fixed height, so the css for buttons has changed significantly.
indeed. it took me 3 weeks to port an app that took me 1.5 years to develop. 3 days of those 3 weeks was troubleshooting an override that was meant to automatically remove field labels when a form element is removed from a 'form layout' container.
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