Calculated fields are fields that do not have their own values, but the values are calculated from the other fields of the same record. It is easiest to implement them in Model.
Don’t you like 16×16 icons? Or they just do not look good on your Retina display anymore? Read this post to learn how to use Font Icons that are scalable, resolution independent and they always look good.
There can be cases where we have an existing page and we just need to insert a grid, from or tree into it. The approach is very simple…
In essence, factory functions are class methods that manufacture items or other properties during the instantiation of the class. This article explains pros and cons of factory function and how to use them correctly.
There has been a lot of confusion I have observed on the Ext Forums as to xtype. Some people ignore it fully, some think that it is what it is not. So I’ve decided to clarify it.