Class: Moving List

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Name: Setec Astronomy <e-mail contact> Published packages: 20 Country: Italy - PHP jobs in Italy Home page: http://setecastronomy.redirectme.net/ Age: ??? All time rank: 10 Week rank: 24

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Innovation Award:

March 2004 Number 4

Some times Web developers have solve the problem of building a list made of items that exist on another list. For instance, if you want to classify an article for publication that may belong to multiple categories, once you associate the article to a given category, the category will move from the list of possible categories to the list of categories already associated with the article. If you want to remove the association of an article with a category, the opposite list movement needs to be executed. The problem of implementing movements of items between two lists in a Web application is that the Web controls provided by common HTML forms do not provide an easy way to implement this kind of dynamic user interface manipulation. The solution provided by this class is to generate Javascript code that can move items between two lists defined with multiple select inputs. The generated Javascript code can be associated to the onclick events of additional control buttons. Although this solution could be implemented without the need to resort to Javascript, it would require additional form submissions to update the state of the lists, thus making the Web forms less usable. Manuel Lemos

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Content management

Components and tools to manage content

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Files:

File	Role	Description
CMovingList.php	Class	Class file
sample.php	Example	Sample script