I am thinking of implementing this with the tiles add-on (it is part of the nightly builds, but not part of struts 1.0).
The action's perform() method does all the work using the tiles api. When the user does something that warrants changing the screen -- the user is submitted back to the same action from whence it came and the perform() method is called. The perform() method will update the "vertical box layout" to include what should be shown based on the user's selection and than forward to the "tiles component" that is applicable (one component per action typically). A standard component is the "classic layout" which will contain menu, header, footer and body. The body section of this layout will contain a vertical box. This vertical box will contain each individual jsp that is necessary for the progressive disclosure. The jsp will contain code (probably javascript) that will submit back to the action when applicable fields change values. What is shown is determined in the action's perform() method where it uses the tiles api to include the applicable jsp's. I think one key component of this design decision is having the perform() method do the calculation as opposed to having jsp's handle what is shown based on logic tags. The reason is to keep the "furthest to the back" layers thicker and the front layer as thin as possible. This way the front layer can be swapped out at a later time. The other reason is to keep logic away from the front layer which undergoes the most frequent changes. If you do a search on tiles in the archive, I have posted some more detail about this structure. As well as other people including the person who created tiles. To read about tiles: http://www.lifl.fr/~dumoulin/tiles/ -Sandeep --- sai srinivas <[EMAIL PROTECTED]> wrote: > Hi, > > I need to implement a functionality, I've named it > 'Progressive > Disclosure'. > > Progressive Disclosure - Dynamic revealing of > the form controls based on > user selection of the viewable controls, as one > progresses in filling the > data collection information or the other definition > can be, in the process > of updating the information, based upon the user > checking certain options on > the page that demand adding certain user controls to > the page on the fly, is > termed as progressive disclosure. > > Can anyone guide me How to implement this in Struts > Context. > > > Regards > Sai > > > ATTACHMENT part 2 application/ms-tnef name=winmail.dat > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> __________________________________________________ Do You Yahoo!? Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month. http://geocities.yahoo.com/ps/info1 -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
