If you show a model (with a lot of attributes) partially in a CGridView, it can be helpful when the user can take a quick look at the full record with all attributes without displaying the view
as a page and afterwards returning back to the gridview.
Say, you want to write a test for a component which provides a caching feature. How would you know, that some method of your component returns a cached result? With the solution described here you can inspect all log outputs. So you could search the logs for accesses to the DB to really make sure, that the result was served from cache.
When we use multiple radio buttons with same name in Yii
many people have the problem on getting the value of the selected radiobutton.
The radioButtonList can be used for that, but if we need to use radioButton itself to place the button any where in a view, we need to include one more parameter in htmloption array().