AJAX :: ResponseText Always Return Null In Firefox?
Jul 30, 2010
Below is JS code:
Code:
var request = new XMLHttpRequest();
request.open("GET", "http://127.0.0.1/get/file.json?filepath=c:\xxx.xxx");
request.onreadystatechange = function() {
if (request.readyState == 4) {
[Code]...
using above code, I wanna implement uploading/dowloading/parsing file with json format. however, the responseText always return null in FF. It it about to make me crazy.
I've been racking my brain for a couple hours now and doing a lot of searching and I cannot seem to find an answer. I want to know if it is possible to return the xmlhttp.responseText value from an AJAX function to the function that originally called the AJAX function.
Code: //Set handler for server response. xmlhttp.onreadystatechange = function() {
[Code]....
I want to return the my_response variable to the original caller. No matter what I try I have been unsuccessful. I even tried assigning it to the global window variable using window.my_response = xmlhttp.responseText but it ends up being undefined.
Every example I've seen of using AJAX pretty much does something inside of the if (xmlhttp.status == 200) part to update the web page. I really do not want to do that.
I'm making an ajax call to return the contents for a page using the responseText property. I want to be able to define a javascript function in the page and call it, doing something like:
<script> function test(){ alert('hi'); } test(); </script>
However, none of the javascript in my page works. I'd imagine it has something to do with it being included as part of the responseText and the browser is not picking it up. I haven't been able to find any info about this online anywhere. Any thoughts?
function getParentElementByTagName(child, TagName){ var cn; if (child.parentElement){ cn = child.parentElement; if (child.parentElement.tagName == TagName){ return cn; }else{ getParentElementByTagName(child.parentElement, TagName); }}}
although it finds the element, the function returns null ( on the line 'return cn', cn is not null though). Is my algorithm wrong ?
First of all, I'm sorry if I'm in the wrong group of discussion. I couldn't find discussion forum for vbscript. The problem I had is in vbscript coding.
The coding is as below: Const adOpenStatic = 3 Const adLockOptimistic = 3 Const adUseClient = 3 strDNSServer = WScript.Arguments(0) strDomainName = WScript.Arguments(1)
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When I load this page into Safari (on Mac OS X) and set the style of divControls1 to "display:block," I have an enabled "Add" button, a disabled "Edit" button, and a disabled "Delete" button, just as I expected. (I monitor selections in a multiple selection element to turn the buttons on and off.) But when I load this page into Firefox (also Mac OS X), all three buttons are disabled at startup. My page runs a function called startup() when the body fires onLoad. To try to troubleshoot the problem, I wrote this line at the beginning of the startup() function:
function startup() { alert (document.getElementById("btnAdd").disabled); ...
When I run this code in Safari, the alert returns "false" (not disabled), just as I would expect, and intended. However, the same code in Firefox (Mac OS X) returns "true" (disabled) ... but the same code in Firefox (WinXP) returns "false"!
I really don't understand why I am getting this error (parsererror TypeError: data is null [object XMLHttpRequest]) after making the following AJAX request:
var base_url = $('span#base_url').text(); var model_url = "index.php/status/get_xml/" $.ajax({ type: "POST",
[Code].....
So I am wondering why the .ajax function has an error, and yet the XML is being returned?
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I want to get the solution for a null xml response at the moment if there is no error i made a work around so the xml returns a fullstop which shows up as an error but in white. I would like to know if there is a way to keep the elementByiD as null when the xml is null as it was returning the error object required is there a better way of doing this????
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I have researched this error/bug/mistake thoroughly with no success. I must be the only one experiencing it. Also, this takes place on every site I develop with jQuery ajax. It happens regardless of whether I use .get, .post, .ajax etc. Problem: The result returned to my ajax function always has a zero (0) appended to it.
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function getLoggedIn(type) { ajax = new Ajax.Request( 'includes/checkloggedin.php', { method: 'get', parameters:'&type='+type, onComplete: checkLoginResult }); }
As any analysis of request.responseText occurs in checkLoginResult(), not getLoggedIn(), how can I pass an Ajax-response-determined return value back to the event handler?
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