Customization of Error Page displayed via wwerr_api_error_ui.show_html

Hello,
I'm writing PL/SQL-Portlets and use the
wwerr_api_error_ui.show_html procedure to display some error
messages. How can I customize the layout of the generated error
page?
If this is not possible, how can I implement this on my own? I've
tried to use owa_util.redirect_url on the occurance of a failure,
but than the html-code genererated before the error occured is
still displayed. What do I have to do, to cancel the html-output
and print the error message?
Thanks,
Mirko

Hi,
You can use the wwerr_api_error_ui.show_html to print upto three
separate lines of custom text, with or without hyperlinks.
You can derive specific error messages from the error stack using
the wwerr_api_error.get_top or get_errors methods to get the
error records.
You could parse the message name, context etc. from the message
record and even write your custom text.
So by a single call to show_html you can print something like:
Error encountered in check_customer(actual context) validation.
(Print actual error message.)
Refresh Page ( use hyperlink to p_portlet_record.page_url)
The spec is:
procedure show_html
(p_help_url in varchar2 default null,
p_text1 in varchar2 default null,
p_url1 in varchar2 default null,
p_text2 in varchar2 default null,
p_url2 in varchar2 default null,
p_text3 in varchar2 default null,
p_url3 in varchar2 default null);
More details in the API reference at:
http://portalstudio.oracle.com/pls/ops/docs/FOLDER/COMMUNITY/PDK/
plsql/doc/sdk14shp.htm
If you want to do your own HTML, make sure you trap your error
conditions, keep a record of your specific error messages, and
then clear the stack. Then just print your error messages as part
of the calls from the procedure that traps the error condition (
either show or from the customizations procedures) using htp.p
calls.
You could use the owa_util.redirect call, when the user presses,
say the 'submit/OK' button and then, add parameter for the error
message name. In the show procedure, first check for the error
flag and accordingly display your error messages.

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Message was edited by:
419365

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Subject: Changing the default error pages
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********

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