Make a page appear on APEX

Hi,
Novice in need of assistance!!!!
so I'm very new to APEX, and i have built an application which has a number of pages, some of which are hidden, and some are visible when you run the application.
I have had instances where a page does not appear in the tabs across the top and I have been able to get round the problem by copying a page with similar properties and up until now, this has worked for me.
however, I have one page which refuses to appear, it is included in the tab set, no display condition, but i just can't get this tab to appear.
I have even shortened the names of the other tabs to make sure it wasn't a case of having to put a scroll bar at thew bottom, it all fits, and there is plenty of space for the tab to appear. I am not sure if there is a limit to the number of pages you can have to appear but could that be the problem? I have 16 pages in my application, but i only need 11 of them to appear including the one I am having problems with
hope i am making my self clear but please inform me if you need further information.
thanks in advance.

I have 15 tabs showing in an application. So that is not it.
For debugging, please set this tab to display at the left-most edge so we know that's not the problem.
There are some tedious things you could try.
1) Create a blank page with Tab that does display.
2) Copy elements on this page to the new one.
I don't know what you have on this page but it's strange that nothing displays on the page.
What do you mean by "it refuses to appear"? Do you mean the tab doesn't appear or the page doesn't appear? If you go to that page and "run" it, what happens?
Thinking ... -- Howard

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hi,
how r u ?
i make my pages in session scope,when run it and make any things in first page and leave it and go to another page and make some thing in it when return to first page i see page in last status .
i want makes these page when first postback clear all status of components .
thanks.

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<pre><code>
CREATE OR REPLACE function PASSPORT.oamPageSentry ( p_apex_user in varchar2 default 'APEX_PUBLIC_USER' )
return boolean
as
l_cgi_var_name varchar2(100) := 'REMOTE_USER';
l_authenticated_username varchar2(256) := upper(owa_util.get_cgi_env(l_cgi_var_name));
l_current_sid number;
l_url_sid varchar2(4000);
l_url varchar2(4000);
l_app_page varchar2(4000);
begin
-- check to ensure that we are running as the correct database user
if user != upper(p_apex_user) then
return false;
end if;
if l_authenticated_username is null then
return false;
end if;
l_current_sid := apex_custom_auth.get_session_id_from_cookie;
l_url := wwv_flow_utilities.url_decode2(owa_util.get_cgi_env('QUERY_STRING'));
wwv_flow.debug('oamPageSentry: request from ' || l_authenticated_username || ' (sid=' || l_current_sid || ') for ' || l_url);
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l_url_sid := REGEXP_SUBSTR(l_url, '[^:]*', 1, 5);
wwv_flow.debug('oamPageSentry: extracted current sid from url as ' || l_url_sid);
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-- a deep link. Detect this condition, strip the duplicate session identifier, and redirect.
if REGEXP_SUBSTR(l_url, '^.*:' || l_current_sid || ':.+:' || l_current_sid || '$') IS NOT NULL then
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-- if the Session identifier present in the URL does not agree with the session identifier in the cookie
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-- ID in from the cookie and redirect to the fixed URL
if owa_util.get_cgi_env('REQUEST_METHOD') = 'GET' AND l_current_sid <> TO_NUMBER(l_url_sid) then
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wwv_flow.debug('oamPageSentry: current sid ' ||l_current_sid || ' is diferent from url sid ' || l_url_sid || ', redirecting to url' || l_url);
owa_util.redirect_url('f?'|| l_url);
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apex_application.g_instance := l_current_sid;
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wwv_flow.debug('oamPageSentry: current session username ' || apex_custom_auth.get_username || ' equal to header username ' || l_authenticated_username);
apex_custom_auth.define_user_session(
p_user=>l_authenticated_username,
p_session_id=>l_current_sid);
return true;
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apex_custom_auth.logout(
p_this_app=>v('APP_ID'),
p_next_app_page_sess=>v('APP_ID')||':'||nvl(v('APP_PAGE_ID'),0)||':'||l_current_sid);
apex_application.g_unrecoverable_error := true; -- tell apex engine to quit
return false;
end if;
else -- application session cookie not valid; we need a new apex session
wwv_flow.debug('oamPageSentry: current session ' || l_current_sid || ' is not valid');
l_current_sid := apex_custom_auth.get_next_session_id;
wwv_flow.debug('oamPageSentry: generated new session id ' || l_current_sid);
apex_custom_auth.define_user_session(
p_user=>l_authenticated_username,
p_session_id=> l_current_sid );
apex_application.g_unrecoverable_error := true; -- tell apex engine to quit
if owa_util.get_cgi_env('REQUEST_METHOD') = 'GET' then
wwv_flow.debug('oamPageSentry: GET request, remembering deep link ' || l_url);
wwv_flow_custom_auth.remember_deep_link(p_url => 'f?'|| l_url );
else
l_url := 'f?p='||
to_char(apex_application.g_flow_id)||':'||
to_char(nvl(apex_application.g_flow_step_id,0))||':'||
to_char(apex_application.g_instance);
wwv_flow.debug('oamPageSentry: POST request, remembering deep link ' || l_url);
wwv_flow_custom_auth.remember_deep_link(p_url=> l_url );
end if;
-- in previous versions of apex the remember_deep_link call would actually work and cause
-- post_login to redirect to the target URL. This doesnt work any more in 4.0. Instead,
-- we'll pass the target page in to the post_login call directly. Post login will blindly
-- append the session ID to the end of p_app_page when it redirects, but we
-- clean that up with the first cleanup redirect at the beginning of the function
l_app_page := SUBSTR(l_url, 3, LENGTH(l_url) - 2);
wwv_flow.debug('oamPageSentry: post_login for ' || l_authenticated_username || ' app_page ' || l_app_page );
apex_custom_auth.post_login(
p_uname => l_authenticated_username,
p_session_id => nv('APP_SESSION'),
p_app_page => l_app_page
return false;
end if;
end oamPageSentry;
</code></pre>

Billy,
Thanks a lot for this great info. It seems to have solved the problem I have been having with an NTLM page sentry function for the last 2 or 3 days. Very difficult stuff to debug what is going on inside these functions when they (obviously) behave differently once you have logged in etc.
As I said, your solution seems to solve my problem - but I have a couple of questions :
1. Is this related to 10347091 which is mentioned on http://www.oracle.com/technetwork/developer-tools/apex/downloads/apex402knownissues-189793.html ?
If yes, did you try the patch?
2. Have you logged a bug or had any feedback (externally or within the forum) from Oracle people on this issue?
I was about to log a bug regarding the deep linking and FSP_AFTER_LOGIN_URL not behaving correctly when I noticed the known issues and now your valuable work. I was going to try the patch, but I'd rather not apply it unless I know it will solve my problem.
Please let me know.
Thanks
Glen

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Make a page appear on APEX

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