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Joe, Good points, however in this case I do want the server to validate the input and in fact return a few extra fields from the server. Ajax seems to be a possible solution, or perhaps JSF and Java beans. Thanks, Charles Wilt -- iSeries Systems Administrator / Developer Mitsubishi Electric Automotive America ph: 513-573-4343 fax: 513-398-1121 > -----Original Message----- > From: web400-bounces@xxxxxxxxxxxx > [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Joe Pluta > Sent: Wednesday, April 05, 2006 2:39 PM > To: 'Web Enabling the AS400 / iSeries' > Subject: Re: [WEB400] RPG and AJAX was->RE: How do I create a > web pagethat.... > > AJAX will be the most overused technology for the next 6-12 > months, until > people realize that it's just not necessary for the majority of > applications. In Charles' case, his initial request was to > be able to enter > items and have them appear on the bottom of the page as he > enters each one. > He didn't say anything about validating the entries, simply > keeping track of > them using a single input field. This could be done with a > very simple fewe > lines of JavaScript. > > Now, he MIGHT have wanted line by llne validation, but he > didn't specify it, > and yet the immediate answer from some people was to add server-side > validation via AJAX, without a thought to performance or complexity. > > When you start changing from one web hit for a page to one > web hit for every > field, you're going to find that issues like latency start to > become much > more pronounced. It's perhaps less of a problem with an Intranet > application, but if this application is ever meant to go out > to slower speed > connections, then AJAX may not be the idea. > > I'm not against AJAX by any means. There are applications > where it makes > sense. The problem is that there are a LOT of issues that > need to be dealt > with, especially when it comes to opening up multiple > persistent connections > to the host. (Oh ho, you say... we don't NEED persistence! > Well, if you're > planning on using any of the capabilities of i5/OS, like > library lists and > security, then you will need persistence of some kind.) > > Anyway, my two cents. AJAX is a cool technology, but it's > not the universal > panacea, and it's very "coolness" makes it highly susceptible > to overuse. > > Joe > > > > From: albartell > > > > >Any recommendations on where to start? > > > > If you can wait until the end of the month I have an > article coming out in > > the May issue of iSeries News titled "RPG and Ajax: > Together At Last" > > > > It will guide you through the bare bones of AJAX and RPG. > The example > > used > > in the article is validating an item number and changing > the appearance of > > the page based on the item entered being valid or invalid. > > > -- > This is the Web Enabling the AS400 / iSeries (WEB400) mailing list > To post a message email: WEB400@xxxxxxxxxxxx > To subscribe, unsubscribe, or change list options, > visit: http://lists.midrange.com/mailman/listinfo/web400 > or email: WEB400-request@xxxxxxxxxxxx > Before posting, please take a moment to review the archives > at http://archive.midrange.com/web400. > >
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