This article shows one of possible ways to implement menu items (as well as links), which displays a progress / wait dialog and are redirecting browser to destination URL in the same time. This is especially useful, for links or routes that are know to be loaded for a prolonged period of time (i.e. getting a lot of data from database).
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.
I build this simple PHP class (DialogBox.php at the bottom of this wiki) to help you in the dialog box usage on Yii applications. The goal is run any Yii actions into this dialog box and return the resulting value to the calling instance.