Often you'll need a form with two dropdowns, and one dropdown's values will be dependent on the value of the other dropdown. Using Yii's built-in AJAX functionality you can create such a dropdown.
This page intends to provide an exhaustive guide of how to use Javascript (JS) in Yii.
It does not explain how to learn coding in JS, but how to deal with it "the Yii way".
CGridView (or CListView) together with CActiveDataProvider is a very powerful combination of the built-in tools of Yii. But how do they work together to accomplish their fantastic functions? And what are you expected to do to use them and to customize their behaviors? This article explains the very basics of them.
I'm developing a website that has an option to look up a car's registration number via SOAP and return additional details such as make, model, colour etc.