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After Header Computations

An After Header computation can reference page item values set in prior execution points.  The only prior execution points happen to be the before header computations and before header processes.  After header computations can be used to set page item values in the after header region and below.  In Figure 12.8, the after header page item was set using an after header computation.  It could not have been set with any execution point later than the after header computation or after header process.

After Header Processes

As shown in Figure 12.8, the After Header process is actually executed prior to the after header region.  For that reason the after header process can still be used to set page item values in the after header region.  It can also reference any page item values set by an earlier execution point.


The above book excerpt is from:

Easy HTML-DB Oracle Application Express

Create Dynamic Web Pages with OAE

ISBN 0-9761573-1-4   

Michael Cunningham & Kent Crotty

http://www.rampant-books.com/book_2005_2_html_db.htm

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