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Rendered and Updated
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Dario Sarcevic
Greenhorn
Joined: Mar 10, 2012
Posts: 5
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Hello!
I am new to JSF and I found something what I dont understand well. I would be very thankful if some could explain me what is difference between updated and rendered?
Thanks in advance.
Dario
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Tim Holloway
Saloon Keeper
Joined: Jun 25, 2001
Posts: 14491
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"rendered" means that a graphic element is drawn on the resulting webpage. If you set "rendered=false" on an element, that element (and its childred) will not be displayed.
"updated" isn't actually a formal JSF term, but all it means usually is that the web page is re-drawn. AJAX uses a concept known as "partial page updating" to redraw only a section of the page without erasing and redrawing the whole page.
When a page (or page parts) is updated, the rendered= values for the elements being updated will be applied according to their current values. So you can use a partial page update to show and hide a section of a page.
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Customer surveys are for companies who didn't pay proper attention to begin with.
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subject: Rendered and Updated
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