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  1.  Home
  2. RPG400-L
  3. April 2007

Re: What do I use?

We got around the back button problem very simply. Each page contains a
hidden session-identifier (a 128-byte string) as an <input type="hidden"...>
form field. Part of that string is a 5-digit 'screen counter', which is
incremented by the iSeries application each time it's called (so it doesn't
refer to a a particular screen) and part of it is a 1-byte session status.

For each page, an onLoad() function checks the screen counter in the
session-identifier field against the screen counter field saved in a cookie.
If the session-identifier screen counter is > the cookie screen-counter, the
cookie is updated with the session-identifier screen counter value. However,
if the session-identifier screen counter is <= the cookie screen-counter
(meaning the user pressed the back button), a screen-identifier session
status is set to 'R' (meaning 'refresh') and the page is auto-submitted. The
iSeries application then simply refreshes the current screen that it
determines the user is on.

This works perfectly - if the user uses the back button (or indeed, attempts
to go back multiple screens), their existing page is simply refreshed.


On 4/12/07, Ron Power <RPower@xxxxxxxxxx> wrote:

:( yes it does.... SHHHHH!!! hehe.

Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
709-576-8132
rpower@xxxxxxxxxx
http://www.stjohns.ca/

___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm. -
Sir Winston Churchill




"Holden Tommy" <Tommy.Holden@xxxxxxxxxxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
2007/04/12 04:27 PM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>


To
"RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
cc

Subject
RE: What do I use?






That should be left arrow duh...


Thanks,
Tommy Holden


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Holden Tommy
Sent: Thursday, April 12, 2007 1:56 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: What do I use?

Haven't tried it but won't Alt+right arrow still go back a page??


Thanks,
Tommy Holden


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Ron Power
Sent: Thursday, April 12, 2007 1:38 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: What do I use?

That's pretty much what I had to do here too. I do not like it
though...
if user has javascript turned off....

Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
709-576-8132
rpower@xxxxxxxxxx
http://www.stjohns.ca/
________________________________________________________________________
___
Success is going from failure to failure without a loss of enthusiasm. -

Sir Winston Churchill




"Jon Allen" <jallen@xxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
2007/04/12 04:05 PM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>


To
"RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
cc

Subject
RE: What do I use?






We use RPGSP and the way we control the back button issue is by opening
the application in a window without button controls (javascript:
window.open) and then on each page we have our own buttons that control
where to go next.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Ron Power
Sent: Thursday, April 12, 2007 2:30 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: What do I use?

I believe so. I'm not sure just how good RPGsp would be at it, perhaps
someone else would be better to shed the light here. I do know that
building an application that is browser based is much more difficult
than
serving up dynamic content on a website. Especially if you are hitting

databases and updating information rather than just retrieval.

Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
709-576-8132
rpower@xxxxxxxxxx
http://www.stjohns.ca/
________________________________________________________________________
___
Success is going from failure to failure without a loss of enthusiasm. -

Sir Winston Churchill




"Michael Ryan" <michaelrtr@xxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
2007/04/12 03:55 PM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>


To
"RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
cc

Subject
Re: What do I use?






Ah...thanks Ron. But, that's a matter of coding and session state,
right?

On 4/12/07, Ron Power <RPower@xxxxxxxxxx> wrote:
> I think he means not to equate the results of using a browser based
> application with how the web works. I'm currently working with java
doing
> web stuff and it's not the same. A browser interface is not quite the
> exact same as a website. ie the back and forward buttons can have...
> undesirable results if not used correctly...
>
> Ron Power
> Programmer
> Information Services
> City Of St. John's, NL
> P.O. Box 908
> St. John's, NL
> A1C 5M2
> 709-576-8132
> rpower@xxxxxxxxxx
> http://www.stjohns.ca/
>
________________________________________________________________________
___
> Success is going from failure to failure without a loss of enthusiasm.
-
> Sir Winston Churchill
>
>
>
>
> "Michael Ryan" <michaelrtr@xxxxxxxxx>
> Sent by: rpg400-l-bounces@xxxxxxxxxxxx
> 2007/04/12 03:46 PM
> Please respond to
> RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
>
>
> To
> "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
> cc
>
> Subject
> Re: What do I use?
>
>
>
>
>
>
> Don't equate browser with web? What else do you use a browser with?
>
> On 4/12/07, Don <dr2@xxxxxxxx> wrote:
> >
> >
> > As I recall, RPGsp is browser based RPG. You're doing basically the
> same
> > stuff you did with 5250 but with a browser interface. I played with

it
> back
> > a long time ago and it was interesting and cool. Just don't equate
> browser
> > with web...
> >
> > The trend is away from the old standard 5250 and doing GUI right...
> >
> > Don in DC
> >
> >
> >
> > -----Original Message-----
> > From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
> > On Behalf Of Wilt, Charles
> > Sent: Thursday, April 12, 2007 2:01 PM
> > To: RPG programming on the AS400 / iSeries
> > Subject: RE: What do I use?
> >
> > But RPGsp (and Icebreak) is for web pages...
> >
> > The OP said he didn't want a web app;
> >
> > The question I asked, which has not yet been answer is why not?
> >
> > Charles
> >
> >
> > > -----Original Message-----
> > > From: rpg400-l-bounces@xxxxxxxxxxxx
> > > [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Jon Allen
> > > Sent: Thursday, April 12, 2007 1:58 PM
> > > To: RPG programming on the AS400 / iSeries
> > > Subject: RE: What do I use?
> > >
> > > We use RPGSP and it is really easy to learn.
> > >
> > > -----Original Message-----
> > > From: rpg400-l-bounces@xxxxxxxxxxxx
> > > [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Jerry Adams
> > > Sent: Thursday, April 12, 2007 2:54 PM
> > > To: RPG programming on the AS400 / iSeries
> > > Subject: Re: What do I use?
> > >
> > > And as soon as someone brings up VARPG (or anything with RPG
> > > in it) as an option, you'll tell us to move it to the RPG list.
.-)
> > >
> > >
> > > Btw, before David cuts off my access, I worked with JWalk
> > > years ago. I
> > > wasn't going to comment on it since it was so long ago, but
> > > back then it
> > >
> > > was no joy. Doesn't sound like it's gotten any better.
> > >
> > >
> > > And just to keep this in theme (RPG) there are other options.
> > > RPGsp and
> > >
> > > IceBreak both, from what I've read, use RPG IV. But I think
> > > they serve
> > > up web pages. Never worked with either, just read about
> > > them. Intend
> > > to look at them at COMMON and attend the IceBreak session.
> > >
> > >
> > > * Jerry C. Adams
> > > *IBM System i5/iSeries Programmer/Analyst
> > > B&W Wholesale Distributors, Inc.* *
> > > voice
> > > 615.995.7024
> > > fax
> > > 615.995.1201
> > > email
> > > jerry@xxxxxxxxxxxxxxx <mailto:jerry@xxxxxxxxxxxxxxx>
> > >
> > >
> > >
> > > David Gibbs wrote:
> > > > tim wrote:
> > > >
> > > >> I am trying to decide what to use. I primary work in
> > > RPG/ILE but also
> > > have
> > > >> done extensive work with VB.NET and began playing with
> > > VARPG. I have
> > > version
> > > >> 7.0 of WDSC, but have little experience using it.
> > > >>
> > > >
> > > > This thread would probably be more appropriate on MIDRANGE-L
> > > > (http://lists.midrange.com/listinfo/midrange-l).
> > > >
> > > > Thanks!
> > > >
> > > > david
> > > >
> > > >
> > >
> > > --
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