Hi, i will demonstrate what i have achieved in ExtJS and share some of my capabilities in creating and reusing classes. I have built single web applications having a solid grounding in UI/UX. i have a standard model that i can easily show which pulls mock json to populate grid, combos, forms, etc. Even if my rate is too expensive per hour, i will demo my work so you can benchmark my work compared to others.
1. Using the Extjs Web desktop - yes i can demo.
2. To load dynamically Ext web desktop windows - can you clarify dynamic ? click a button and display a window or allowing for a dynamic form build based on params ?
"The complexity is that we want to load a lot of Ext Windows on the Ext Webdesktop. In the future we want to use it also to control an ERP environment. The sencha library has the problem that when a lot of controls are loaded at once that it can give performance issues in old browsers and or IE."
the statement above could be due to poor practices. Ext windows, like most components, have a lifecycle. At the end of the cycle you would destroy the components and remove this from the DOM, freeing up resources.