I have tried debugging using the alert function and have come to the conclusion that the responseXML property keeps returning null even though I have set everything correctly.
Here is the source code:
HTML Code:
I have several functions with code along the lines of:
var xmlDoc = requestXML("ajax.asp?SP=SelectRelatedTags&tag=" +
array[i]);
The requestXML() function includes the code:
var xmlDoc = null;
http_request.onreadystatechange = function() {
if (http_request.readyState == 4) {
if (http_request.status == 200) {
xmlDoc = http_request.responseXML;
} else {
alert('There was a problem with the request.' +
http_request.status);
}}};
http_request.open('GET', url, true);
http_request.send(null);
return xmlDoc;
However, the last line (the return) executes before the readyState
reaches 4. How do I return the xmlDoc to the functions only once the
xmlDoc has been assigned? I tried putting the return statement in a
while loop with the condition that the readyState must = 4 - this
worked, but makes the browser popup a message saying the script is
slowing down the system.
I tried POSTing from XMLHttpRequest, i can get the XML right on server
but responseXML from server is coming null. I can see the XML right in
responseText. but responseXML is null. responseText to DOM conversion
also fails while the XML in responseText seems valid ..
-- here is the javascript code for sending ---
Im developing a JSP site... my user information validation page is not working and its giving that responseXML object is null...Im not using any XML file to fill the data here.... all the messages custom messages are loaded from the JSP page....My Valildation.js file as below.....
// holds an instance of XMLHttpRequest
var xmlHttp = createXmlHttpRequestObject();
// holds the remote server address[code].....
This function was working in Safari but not in Firefox. I was referencing a couple of elements using the forms[] array instead of getElementById(). I changed those refernces to use getElementById() and now the calculateTotals function does not work in Safari or Firefox.
So I did an alert box to see ucell and it was null. I tried two more alert boxes for the id I was passing to getElementById and for the id of the actual element on the page (which was also created dynamically). They were both identical. The element is created in the onload event, and I am not calling the calculateTotals function until there is onchange event on a text box. So it is not that the element has not been created yet. . Code:
I was having trouble with XSLTProcessor::transformToFragment() returning null on WebKit browsers (Safari and Chrome). Having read comments about issues with the load() method and xsl:import element, I used XMLHttpRequest and a very simple stylesheet and XML document for testing. Even after having eliminated the well-known problems, I was still disappointed to get a null return value from transformToFragment(). Finally, I noticed that one example used:
<xslutput method="html" />
where I had been using:
<xslutput method="xml" ... />
When I changed my method to "html", the transformToFragment() worked.
I have been trying to get the feed from this url: [url]
But it keeps returning "data.responseData is null in the firebug console"
If I pass any string containing the � symbol (GBP symbol), JSON returns a null value.
Is this a known issue, and is there a way around it?
Aside from the � issue, JSON is great and works wonders
In processing the response from an AJAX call, assume the returned xml string as:
"<?xml version="1.0" encoding="UTF-8"?>
<options>
<option text="new search..." value="search..."/>[code].....
Now, in the javascript:
1)If I use ajaxRequest.responseXML, I can directly use it as DOM document, such as: ajaxRequest.responseXML.getElemetnByTagName("option");
2) Or, I can use another way(assume on Firefox):
var parser=new DOMParser();
doc=parser.parseFromString(ajaxRequest.responseText,"text/xml");
doc.getElemetnByTagName("option");
My questions are.Since I can use ajaxRequest.responseXML.getElemetnByTagName("option") directly, I do not need DOMParser to convert.On the other hand, if the ajaxRequest.responseText is NOT of the XML format, the parser.parseFromString will not work any way.Then, why (under what circumstance) should one use DOMParser?
I'm having trouble figuring out what's going on with IE6's
Msxml2.XMLHTTP object. I have two feed addresses in this stripped down
version of my code below. Both work fine in Firefox (using the
XMLHttpRequest object), but only the thinkgeek one works in IE. In the
processFeed function, it shows the problem - the first alert shows 0
for the wikihow feed in IE, though it can still display the
responseText. Any insight? Code:
I'm trying to create a function that will return the value of responseXML so I can assign a variable to it.
Code:
ajax.downloadXml = function (url)
{
var XMLHttpRequestObject = false;
[code]....
Stepping through the function, the onreadystatechange seems to never be executed, so nothing is returned. There's probably just a fundamental I'm messing up on.
I'm not getting any response for the following ajax request. I'm getting the following error when i try to run request_get_xml.html im mozilla firefox:
XML Parsing Error: not well-formed Location: moz-nullprincipal:{d4e6a0fb-93c0-4ef4-82cf-7ccbd5c1e02e} Line Number 4, Column 2:
-<CATALOG>
request_get_xml.html
<script type="text/javascript">
function loadXMLDoc()[code].....
I am trying to build a very simple Ajax example with JavaScript and PHP. Basically, the goal is to populate a select list with values dependent on the selection in another list. I am able to do a GET from a server-side script and I see the XML displayed correctly in XMLHttpRequest.responseText. However, when I try to check XMLHttpRequest.responseXML, I am not able to get anything out of it. The alert() shows it as an "Object", so it's not null. I have tried getElementByTagName() from both responseXML and responseXML.documentElement, each time giving a legitimate inner tag, but nothing comes out. What is the correct way of doing it? This is my JavaScript and HTML code:
[Code]...
The situation is; I receive a response back from the server which i only a part of html code. e.g. a table like <table <tr><td>high</td></tr>........ </table>. In other words, I receive
file as a response which has a part of html file.
My aim is to replace an existing document node with the new response.
If I run the following lines (JavaScript):
var parsedText = document.createTextNode(req.responseText);
body.replaceChild(parsedText, toReplace)
It replaces the node 'toReplace' with html codes with the tags include which is not what I want. The html tags are not wanted but should display in correct format as specified by html (a tabular form if htm tag is <table>)
If I try:
My code gives me an error only the first time when i press the checkbox. If i press it for the second time or just to uncheck the checkbox and it gives me the right answer.I use IE7, xampp with appache server and Windows7.
Message: 'null' is null or not an object
Line: 76
Char: 3
Code: 0
<!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">
<body>[code]............
I did find the javascript twice in my code, once in the header and once here, so i removed it from the header. I also changed to src to the full url. But i am still getting this and i dont know why. the file is located in the root directory. found a solution. basically Internet Explorer is crappy and doesnt like the setAttribute property so had to change the onchange handler by directly changing the attrbute for the object like so.object.onchange = function() {}i have no idea what they means, does that mean i need to change swfobject.js or does that mean i have to change my xml request. and if it is the swfobject i have no clue what they mean or what lines
View 2 Replies View RelatedI've been trying for hours and I can't figure out why IE6 is throwing an derror on the following line of code.
Code:
var parts = rgbString.match(/^rgb((d+),s*(d+),s*(d+))$/); This is the function:
Code:
function rgbToHex(rgbString)
{
var parts = rgbString.match(/^rgb((d+),s*(d+),s*(d+))$/);[code]....
And this is the error:'null' is null or not an object
I put a long script but the problem is small.
var book1 = bobj1.value;
var chapter1 = cobj1.value;
var verse1 = vobj1.value;
var book2 = bobj2.value;
var chapter2 = cobj2.value;
var verse2 = vobj2.value;
[Code].....
I don't know if this is written properly: if(bcv[a]!= ""){ The reason this is happening is because the error shows: Error: cobj1 is null Source File: [URL]
My code is in the attachment alex.txt.When i press the button for first time it gives me error: 'null' is null or not an object. But when i press it again or refresh the page and press the button it gives me the result that i expect.When i change the var pdbfile1,2,3 values(for example with 2x4n;3gis;1crn) and press the button again there is the error again and i have to refresh the page again.
View 7 Replies View RelatedWe are trying to use some javascript for a slideshow and are getting the following error message in our browser.
Unfortunately, we only have basic CSS and HTML knowledge. I was hoping the error might be an easy fix for someone on this forum.
The code is as follows:
What changes need to be made to this code?
I'm not to familiar with js but I'm having a problem with, mootools.js in IE 8 "null" is not a null or not an object line 8, 13, 59
Parts of my site are not showing up and this just started happening.
[url]
I keep getting an error stating "getElementById("ballElement") is null, but I have a div with that exact id. I have looked at the JS script before that line, but found no errors there either. Please take a minute to see if you find something.
[Code]...
Doesn't "prototype.js" support the "responseXML" property of the XMLHttpRequest object?
View 2 Replies View Related$.getJSON('/VersionQueryJsonAction',{verID:verid},function(data){
if data.verMailDate is null,i need it is "",not "null",.
here's what we have in an html file.
<form .....
<input type=button name="comment" onclick=" prompt('enter comment','
' )" >
Is there anyway to get the value returned from the prompt in the statement
above, into the value of the statement below ?
<input type=hidden name="comment_text" value = ???? >
We would like the user to click the "comment" button, have another window
popup where they enter their comment, and then take the comment text and
append it to the value parameter of the hidden statement.
The following code is supposed to return a variable containing text, currently the code posts the data but returns an "undefined" variable. Can someone tell me what's wrong? code...
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