I am having trouble populating elements from the following Yahoo RSS feed: [URL] I need to show the current weather conditions when a button is clicked. Here is what I have so far.
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I need to populate the <h1> and two <p> elements. I know that the copyWeatherData() and getWeatherData() functions are not coded properly.
I am going to use the server push
for streaming the data by keeping the connection open. At client side,
i am having the XMhttprequest object (i.e ActiveX object of IE). When
the data comes, onreadystatechange method get callback on state 3 but
it doesn't allow me to read the data from the object. It says 'The data
necessary to complete this operation is not yet available'. Is it
possible to read the streaming data from the XMLHttprequest object in
IE?
I know Mozilla supports to read the data, when the ready state is 3. In
Internet Explorer, how we can use the XMLhttp Active object to read the
streaming data.
I trying to retive info from a object but am having some problems, I'm not that familliar with Javascript but got background in other languages.
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I am looking for a solutions for the following problem,
I need to access at database from within a website, from where I can
retrive a specific document in the database and mailing it to someone
else. Of course I cut crab the document from the database and save it on
my harddrive, and then send it. But this process don't fit into our
busy days.
Is it possible to pass information back from a popup window?
I am looking to open a popup from our internet site to our web based
mainframe app (HATS). I would like to send some strings from this
popup page back to text fields in the calling page to populate a form.
Does this sound possible?
i want to retrieve data from mysql database using ajax and php. my code is below which does not work
here is index.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[Code].....
Code:
<html>
<head>
<script language="javascript">[code]....
i am having problem with the addition of values in the amount field.before i created 5 rows manually in the first table and used addAll() function. It was working fine.but now when am adding/deleting rows dynamically the same function is giving me problem in addition.
Im having the weirdest problems with my ajax. Now first off i have horrible coding convention!! I have one Ajax.js file which handles all my ajax requests and one ajax.php file which handles retrieving data from a database. The problem I am having is when ever I call a certain method which contains a if statement and runs the respective ajax function, it sometimes evaluates the if statement wrong. The weirdest thing of all is when I use FireFox's firebug and step through the javascript code to see why its evaluating the if statement wrong, it evaluates it correctly.
So basically if I don't step through the javascript code it evaluates the if statement wrong which means one of my variables are not being set in time for it to be used in the if statement. BUT if i step through the code with firebug it evaluates the if statement correctly! Now I have tried this is all the browsers and sometimes it evaluates the if statement correctly and when i keep refreshing the page it will sometimes evaluate the if statement correctly! Now I know this makes no sense, but I'm just as confused! The only reason I can think why this is happening is that one of my variables are not being set in time for the if statement to use it!!
i have java script below. i am retrieving states from mysql database and list them dropdown menu. oscommerce, mysql and php. this script works well when it is embedded between head tags to each php file in old version. goes to city_get.php and takes the state result from there. but in the new version (no head tags in php file) i saved the script as js file and try to call from template_top.php (which shows the all the java's way), explorer gives error in the below line. i have followed this error from explorer error messages.
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I am using the SVG plugin. I have a simple test and I am unable to retrieve the x and y values of a text object.
$('#objID1', svg.root()).attr('x')
This returns as empty. Where as:
$('#objID1', svg.root()).attr('fill')
successfully returns the fill value.
HTML code:
<html xmlns="[URL]">
<head><title>SVG test</title>
<script type="text/javascript" src="js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.8.7.custom.min.js"></script>
<script type="text/javascript" src="js/jquery.svg.js"></script>
<script type="text/javascript" src="js/jquery.svgdom.js"></script>
<script type="text/javascript" src="js/jquery.svganim.js"></script>
<script type="text/javascript" src="js/test2.js"></script>
<style>
#svgCanvas {
width: 200px;
height: 200px;
border: 1px solid #ff0000;
}
#svgAtts {
width: 200px;
height: 200px;
border: 1px solid #ff0000;
}
</style></head><body>
<div id="svgCanvas"></div>
<div id="svgAtts"></div>
</body>
</html>
Javascript code test2.js:
$(function() {
$('#svgCanvas').svg({onLoad: function(svg) {
//code
}}); });
$(function() {
var svg = $('#svgCanvas').svg('get');
var obj = svg.text(50,50,'Some Text',{id: "objID1", fill: "#FF0000", fontFamily: "Arial", fontSize: "24"});});
$(function() {
var svg = $('#svgCanvas').svg('get');
var string = 'fill = ' + $('#objID1', svg.root()).attr('fill') + '<br />';
var string = string + 'font family = ' + $('#objID1', svg.root()).attr('font-family') + '<br />';
var string = string + 'font size = ' + $('#objID1', svg.root()).attr('font-size') + '<br />';
var string = string + 'x = ' + $('#objID1', svg.root()).attr('x') + '<br />';
var string = string + 'y = ' + $('#objID1', svg.root()).attr('y');
$('#svgAtts').html(string);
});
function XML_request(func) {
var onreadystatechange= func;
this.method = "GET";
this.get = function(url) {
var request = null;
var state_change = function() {
if (request.readyState==4) {
if (request.status==200) {
onreadystatechange(request);
} else {
return null;
}
}
}
try {
request = new XMLHttpRequest();
} catch(e) {
try {
request = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
return null;
}
}
if (request===null) {
return null;
}
request.onreadystatechange = state_change;
request.open(this.method, url, true);
request.send(null);
}
}
var req = new XML_request(function(response) {
response = response.responseXML
alert(response.getElementsByTagName('blah')[0].firstChild.data);
});
req.get('index.php?mode=blah&a=response')
i didn't like the examples I found so this is suitable.. I only tested in ie and firefox though.. so let me know what I may be missing.. or criticism in general.
I am trying to do something like the way they roll the 3 products on the bottom of page:[URL]...
The most important is that tha data is dynamic and I want to retrieve more than 1 products per time. I am using ASP.NET.
I am playing with the XMLHTTPRequest method to perform client/server
transactions. I have it set up right now so that when readyState is 4,
it takes the XML and processes it. This works great until there is alot
of data. In that case, the user will have to wait for the data to come
back which may take a minute or so.
I don't want the user to have to wait. Is it possible for javascript to
periodically (while still receiving more data) stop and display what it
has received thus far? I guess this would be considered a type of
streaming.
In mozilla/firefox, I have read that I can use readyState 3 to run my
callback function every 4096 bytes. I can then take those 4K, parse
them, and then continue on. However I have also read that IE cannot do
this. Since I need this to work in IE, is there a workaround?
I am trying to create an xmlhttprequest object to update the shopping cart on my web page without submitting the entire page to the server for processing. However, what I have done so far is not working. All that is happening when I click the "update cart" button is the page sort of flashes and the check marks in the remove item check boxes disappear. The first code snippet is the "traditional" way of submitting the whole page to the server for processing - and it works. The second snippet is what I have done to try and implement AJAX to submit only the shopping cart - and it does not work.
<html>
I've created a small AJAX library for our application. We send the response data back as JSON in responseText. So far so good.
Before we invoke the response handler, I'm putting the eval'ed responseText in the request object like so:
Code:
req.respText = eval('(' + req.responseText + ')');
This works in FF but breaks in IE 6. (*gasp*)
I finally got the Microsoft Script Editor yesterday, so I could play with the values and see what was going on. Kind of... I'm still in the dark. For some reason, it won't let me add a property to req. Can anyone explain why/how it prevents me from doing so?
Conceivably I could add the eval'ed responseText to the response handler function, but that would break the API, and would require us to modify a bunch of existing functions.
Im trying to set request header of my XMLHttpRequest object.
Code:
xhr.setRequestHeader("Content-Type", "text/xml");
and it gives this exception
Quote:
Error: uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIXMLHttpRequest.setRequestHeader]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://************ :: process :: line 52" data: no]
My JavaScript is trying to POST data to a CGI script (Perl) using
XMLHttpRequest. My CGI server gets different data from IE than Mozilla
Firefox.
// For Mozilla, req = new XMLHttpRequest();
// For IE req = new ActiveXObject("Microsoft.XMLHTTP");
req.onreadystatechange = requestHandler ; // function to handle async
response
req.open('POST', myURL, true); // use POST
req.send('foo=11&bar=22') ;
A Perl CGI script prints the parameters passed to it.
$q = new CGI ;
foreach my $param ($q->param) {
print "$param: " . $q->param($param) . "
" ;
}
The data received by the CGI script is inconsistent, depending if the client
is IE or Mozilla (Firefox)
Server result from IE client:
foo: 11
bar: 22
Server result from Mozilla Firefox client:
POSTDATA: foo=11&bar=22
It seems that the POST data IE sends is more correct than the Mozilla data.
Is there another way to send the data in Mozilla so the CGI script will give
the same results. I could easily adjust the CGI script, but I think the
problem is at the client.
I'm working with a pretty large XML file, but I really only need to
display a few things that requires quite a few transforms. I already
limited to the transforms to the data i need to use, but I'd like to
speed things up by loading only the data I need.
I need to mention that this is for a local application that sometimes
will lookup updates on a server, but mostly, it is for local use
(offline)
I can use xmlHTTPrequest for both local or server data access. That
seems to work fine. Now I would like to be able to load only the data
I need.
I hear the Google suggest tool bar uses xmlHTTPrequest to look up a
list of known queries, so I am hoping they lookup "only" the necessary
data as one types. It's kinda what I want to do, but I'm not sure how
that would work, since the "url" parameter should be a destination
file name.
I'm reading the content of a local binary file with the method mentioned here: [URL]
Then I'm getting the data as a string where each character represents the binary value. I have successfully sent that string with Mozilla's XmlHttpRequest's sendAsBinary method, but IE 7's version doesn't have that method...
Using the send method almost works, the only problem is that binary content can be represented as the asciicode 0. This means that the string read by sent is cut off as soon as it is encountered. That means that the part before the first NULL character (asciicode = 0) is successfully sent to the server.
The solution I have made right now is to increment each character's asciicode on the client side by one and decrement them on the server before converting the character to the binary representation. The downside with this is that the size of the data sent between the client and server gets larger than the original filesize. Ex: 8kb file grows to ~12kb.
I find ajax with jquery more confusing than with regular JS, b/c in jQuery you don't declare XMLHttpRequest object.. so how do you do something like:
In example I mention here,[url] namely [url] I don't understand where var 'msg' is declared, I know it comes from the back-end, but HOW is it passed to the front-end? (how do you do this w/o responseText or something similar?)
I'm trying to connect to a send-mail jsp with ajax.. the email is not getting sent.. I want to test if the ajax connection is being made at all.. don't know how do it w/o something like xmlHttp.responseText
This is my jQuery ajax code for connecting to send-email jsp:
var dataToSend = "name=sName&email=sEmail&msg=sMsg;
Say I have 2 HTML pages. In page A, I want to display part of page B.(content between a div tag pair with ID in B) Now I was able to use the XMLHttpRequest object to get the complete page B, namely, through the reponseText property of the XMLHttpRequest object. But my goal is only part of page B, not the entire page. I tried to use XML DOM tree node methods to extract the wanted part from page B, but it does not work. I think the problem is that page B is a HTML page, not a XML page. Is there a work around on this?
View 2 Replies View RelatedI stumbled upon a strange behaviour of the XMLHttpRequest.. Maybe I'm
just not well informed enough about its possibilities, so could someone
please confirm my question?
When I put plain javscript in a file that is read-in through a
XMLHttpRequest-object, it's like it is totally ignored. Eg. I have the
file ajax_include.html with in it's body the following lines
<script type="text/javascript" language="javascript">
alert('some alert');
</script>
when I directly surf to the file, the alert pops up as expected, but
when I use a simple XMLHttpRequest to replace the contents of a div
with the contents of this page, the alert is not popping up, although
when I view the selection's source (Thank you, Firefox!), it is there!
When I place an anchor with an onclick-action (eg. alert('onclick')),
it works when I click it.
So my "conclusion" is that it seems like inline javascript commands are
ignored (functions not recognized etc.). All actions assigned to other
events work nice though.
Can someone confirm this strange behaviour? Or is it just normal with
the use of an XMLHttpRequest opbject?
I am trying to read data from server using AJAX XMLHttpRequest.responseText.In received data, there are lot of similar type of characters which has tge value of FFFFFD (65533). I think, all characters which has the value above 127 are converted to default character.
View 1 Replies View RelatedI am submitting a form using ajaxSubmit and trying to read back the status code.For a error case it is showing HTTP Status 404 in responseText but not xhr.status is undefined.If i use complete callback then xhr.status 0 So how to handle case when there is some error like 404..[code]
View 2 Replies View RelatedI have an object with a single Method to load content from a xml file. The problem is... how do I add a property to the object to store the data loaded?? I tryed adding a simple Array inside the object, but didn't work.
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In my web application we are able to store large data in the browser
cookie keeping in mind the limit of 300 cookies per cookie file, 20
keys per cookie per domain and 4KB max size of each cookie. We are
unable to retreive this large amount of data immediately after storing
through document.cookie in IE browser (The same works fine in
Netscape).
Is there any limit on the size of the data that can be retreived using
document.cookie in IE browser? Could you please suggest a solution to
this problem I am facing.