On Wed, Aug 25, 2010 at 10:32 AM, Otis Rothenberger
<[email protected]>wrote:
> Bob,
>
> I'm working on this now, and I picked up on the fact that I would not be
> translating XML. I set this to "", but I'll remove the whole thing per
> your suggestion.
>
> I've used something like this before, but I used a "GET." A query string
> is in your "POST," so everything is there. The main thing is it works
> like a charm! What is true in:
>
> req.open("POST", url + "?" + data, true) ???
>
http://msdn.microsoft.com/en-us/library/ms536648%28VS.85%29.aspx
Looks like it is the asynchronous flag. You need that to be true, otherwise
the browser hangs.
>
> Originally, my NIH data was in a form field (readable via DOM/iFrames),
> and your code returns the whole page html. I need to change the dynamic
> page to return NIH text only.
>
Exactly.
>
> Otis Rothenberger
> chemagic.com
>
>
> On 8/25/2010 11:01 AM, Robert Hanson wrote:
> > Otis, that should read as follows. The xmlProcessor business was for a
> > page I had that actually did get XML return, but you won't have that,
> > I think. Truly, this is all there is to AJAX!
> >
> > var req = null
> > var isMSIE = false
> >
> > function loadXmlData(url, data) {
> > try {
> > if (window.XMLHttpRequest) { // native XMLHttpRequest object
> > req = new XMLHttpRequest();
> > } else { // IE/Windows ActiveX version
> > isMSIE = true
> > req = new ActiveXObject("Microsoft.XMLHTTP");
> > }
> > req.onreadystatechange = processStateChange;
> > req.open("POST", url + "?" + data, true);
> > req.setRequestHeader('Content-Type',
> > 'application/x-www-form-urlencoded; charset=UTF-8');
> > req.send(data);
> > } catch (e) {
> > alert(e);
> > }
> > }
> >
> >
> > function processStateChange() {
> > if (req.readyState != 4)
> > return
> > if (req.status != 200) {
> > alert(req.statusText);
> > return
> > }
> > [do something with req.responseText]
> > }
> >
> >
> >
> >
>
>
>
>
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--
Robert M. Hanson
Professor of Chemistry
St. Olaf College
1520 St. Olaf Ave.
Northfield, MN 55057
http://www.stolaf.edu/people/hansonr
phone: 507-786-3107
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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Be part of this innovative community and reach millions of netbook users
worldwide. Take advantage of special opportunities to increase revenue and
speed time-to-market. Join now, and jumpstart your future.
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