What is a cascade menu?
A cascade menu is a computer menu system where the option selected in one menu is used to determine which options are available in the next. Developers divide a list of possible values into two or more logical levels, and each of these levels is represented in a single offer. End users can then narrow the overall list of possible options before the final selection. For example, on Windows XP, for example, users are going through a cascade menu every time they click the Start button. The icons in the submenu, such as all programs and control panel, are not displayed until the user chooses the option from the Start menu itself.
Most computer applications also use cascading menus. Although this is shown a little differently, the upper menu of most applications is another example. The submenu is not available until the user clicks on the file, edits, views, etc., from the main menu.
AR are also often seen on the webh pages, in various forms. They are usually presented by the user through a series of drop -down lists. Initially, only the highest level drop -down list is filled and allowed; Others are empty and/or gray. Once the user selects in the first list, the next one is activated and filled.
The use of cascading offers on the website has expanded dramatically using asynchronous javascript and XML (AJAX). In the past, the code needed to fill one drop -down list based on the selection in the previous list in general, requires the user to refresh the entire website. For Ajax, however, developers can create pages on which only parts of the page refresh. This Ajax cascading menu offers a better and faster user experience.
Although a cascade of menus can be created using any system to divide selections into groups, HirarcThe hick relationship is most commonly used. For example, if the goal is to introduce a list of cities from which you can choose from, the first menu could initially display a list of countries. After the user selects the country, another offer can be filled with a list of states contained in a selected country. Only after the user selects the status is fulfilled by the city offer.