Read Style Of SelectedIndex
Jul 20, 2005I am using IE5 and have a select-box with options that have different
colors. Is there a way to read out the style attribute of the
selectedIndex (here: color)? See simple demo script here under...
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TypeError: Cannot Read Property 'style' Of Null
Jul 21, 2011i have a top navigation bar with a clickable down arrow. once clicked a drop-down will appear. there are about 5 to 6 click downs. the content in the click downs are store in an external html file and i use an iframe to display it. so if 1 arrow is clicked content will show and if another is clicked while the 1st stays open, it should replace the 1st one. <snip/> I am getting an error that says TypeError: Cannot read property 'style' of null. the code line it's referring to is the one below with the stars:
[Code]...
Mean Of "Cannot Read Property 'style' Of Null"?
Nov 23, 2009I'm trying to get rid of some javascript errors related to fadein/fade out. If you go to my test site here [url]... you will see the green ticks and red warning boxes working fine when entering information, but I get 92 (!) errors when checking the error console. [code]...
I have added some style="opacity:1; background: white;" properties to my HTML thinking that was the problem, but it makes no difference. Still getting the error related to line 124.
Need Value Associated With SelectedIndex
Aug 17, 2006I'm trying to get the value associated with a selected index in a drop down list.
Here's an example:
HTML Code:
<select name='elem'>
<option id=颼' value='Hello' name='hello' />
<option id=餠' value='Hello' name='hello' />
</select>
My Javascript is as follows - THIS CODE DISPLAYS CONTINUOUS VALUES: 1,2,3...
Code:
alert(elem.options.selectedIndex);
If I were to use the following, I'd get 'undefined' alerts
Code:
alert(elem.options.selectedIndex.value);
The thing is I need the value, not the index.
Any ideas/references?
Get SelectedIndex Of A Select From Its Value?
Mar 2, 2010I am trying to figure out if there is a way to get the selectedIndex of a select by its value, without going through a loop to check for it.
I know the value of a select, and I want to make the option be selected. But I don't know the selectedIndex. Was hoping to do it without going through a loop to determine the selectedIndex
Options.selectedIndex
Jun 3, 2005I have one select, I can say wich element is selected:
<select name="myselect">
<option value="100">A</option>
<option value="101">B</option>
<option value="102">C</option>
</select>
this line will select the option B
myselect.options.selectedIndex = 1;
but, how can I do if I want to select the option B without knowing it´s position?
I mean, I want to select the option B and the value 101, but I don´t know it´s position
any idea?
Setting SelectedIndex Based On Value?
Aug 6, 2009I have the following snippet I'm trying to make work in Firefox:
Code:
for(var j=0; j<sBox.options.length; j++){
if(sBox.options[j].value == 68)
sBox.selectedIndex = j;
}
No errors are thrown and the correct index is not selected.
However, when I add the following line to the snippet, it magically works fine:
Code:
alert(sBox.options.length);
for(var j=0; j<sBox.options.length; j++){
if(sBox.options[j].value == 68)
sBox.selectedIndex = j;
}
Instead of using alert, I've tried simply assigning sBox.options.length to throwaway variable, but I end up with the same results as the first snippet.
Resolved Change SelectedIndex IE Bug
Jun 19, 2009why does this work under FF and only ONCE in IE but the problem remains the same as the firefox only code crashed IE's javascript.so it works only once still.SOLUTION -> changed event from onchange to onclick for my checkbox calling that function !
View 4 Replies View RelatedOnChange Event And SelectedIndex?
Feb 10, 2011I'm using selectedIndex to change an option in a listbox, but I'm finding that the onChange event doesn't fire unless I manually make a selection. Is there any way to effect the change by JS so that the event works?
View 2 Replies View RelatedJQuery :: Way To Update SelectedIndex Variables?
Mar 18, 2011[url]
This is my sample code so far. Currently it only works for "Akali" under the "Select a champion..." dropdown list.
The way it works is, you select a level from 1-10 from the "Select a level..." dropdown list, and then you select Akali from the other dropdown list and her "Health" is calculated by "lvl * 80 + 510" which works perfectly. But the problem is if you change the level that value does not update automaticly. Instead the person using it has change the level to the new level they desire, change the champion and change it back again for it to update. Which normally would be ok, but I will be adding much, much more data to the page and I can't ask people to have to update stuff 10 times just to get accurate figures.
I took this from the w3schools jQuery tutorial and built a button, so ignore the way it currently works. I guessed that with a button it would when pressed it would take the latest, aka current selectedIndex values and all would work fine, and it does actually. But I just wanted to ask if there was any way to keep all the information updated at all times without a button, or maybe a button that will update everything on the website with just one click?
Opera - Problem Determening The SelectedIndex Via JavaScript/DOM
Jun 7, 2006I have a problem determening the preselection of a dropdown list via
JavaScript DOM:
The followin code works fine with IE and Mozilla but does not preselect
the correct element in Opera:
//snip
myCurrentElement =
window.document.getElementById(''role'');
myNewElement =
window.document.getElementsByTagName(''font'')[0];
myNewChildElement =
window.document.getElementsByTagName(''select'')[0];
for (var i = 0; i < optionArray.length; i++)
{
myNewGrandChildElement =
window.document.createElement(''option'');
myNewGrandChildElement.setAttribute(''value'',
optionArray[i]["value"]);
if (optionArray[i]["selected"]!=null)
{
//myNewGrandChildElement.setAttribute(''selected'', ''selected'');
}
myNewGrandChildElementText =
window.document.createTextNode(optionArray[i]["label"]);
myNewGrandChildElement.appendChild(myNewGrandChild ElementText);
myNewChildElement.appendChild(myNewGrandChildEleme nt);
}
myNewElement.appendChild(myNewChildElement);
myCurrentElement.appendChild(myNewElement);
//snip
Dynamic SelectedIndex In Option List Not Working?
Apr 27, 2010If the user types "a" then the select box is populated with "Choose An Animal...", then the three three animals beginning with A. So far so good. But if the user selects say Albatross and then types the letter b then the option "Bear" is selected rather than "Choose An Animal". Although the code is sel.selectedIndex = 0; (not 1). How can I force the selected index to 0 when a choice has been made previously? Is this a bug - if so it is the same in IE and FF.
<html>
<head>
</head>
<body>
[code]...
JQuery :: Change Event On A Select Field When The SelectedIndex Or Val Is Set?
Nov 1, 2010Is it possible to trigger a change event on a select field when the selectedIndex or val is set with jQuery? I've tried it and it doesn't seem to work. I'm attempting to replace a select field with one of my own design. The issue is if i attached a change event to a select field, when the index is changed it needs to fire that event. Basically if a select field is replaced with my list and a seperate script is set on the select list, I need that seperate script to fire without knowing what it is.
View 2 Replies View RelatedJQuery :: Obtain ORIGINAL Style Setting - And NOT Computed Style?
May 5, 2010My understanding had been that $.css("width") would return the original user selected style, eg "100%" or "10em", and $.width() returned the computed width, always in "px". Not so, following the code through for .css(), it calls something called getComputedStyle and the only difference between the two functions turns out to be a post-fix of "px" on the .css() result - not very useful. I need to know whether my user has called me with a proportional dimension, or a fixed one. How to tell with jQuery?
View 1 Replies View RelatedHiding Code Between <style Type=text/css">...</style>
Apr 24, 2009I have built a website and I wish to hide my code between "style type="text/css">....</style>
Is there a way to hide the code between it?
JQuery :: Using To Style List-style-type?
Oct 12, 2011This is probably quite a simple problem but I can't figure out the answer. I'm working on a site that has news stories and events coming in. What I would like is to have the news stories to be styled with squares and events with discs for instance. I might be able to change the actual plug-in so the CSS affects this change, but I just wondered how I could change the list-style-type with jQuery.
[Code]...
Getting Element Style Outside The Style Attribute?
Oct 22, 2009if I have an html page that uses the <style> or a <link> to call a style sheet these properties aren't available to JavaScript is there a good way to access them? eg
<html>
<head>
<title>expandable text area</title>
<style type="text/css">
[Code]....
Read A Pre Tag With Xml ?
Apr 5, 2010I want to read a pre tag with xml. I am working client side. I have tried everything. The <title> tag gets lost with innerHTML(ok in FF only). I tried traversing the dom and putting in the tag names but the title tag is ignored. I am trying to syntax highlight this. Everything works if I do not use certain html tags. How do I get raw text from the pre? The text would come from one of two sources, a server or inputted into a textarea by the user. It is dynamically placed in the div tag and then processed.
HTML Code:
How To Read XML
Feb 15, 2012I'm trying to read an XML file with Javascript. It's supposed to display an alert message but it's not. What's wrong with my code?
HTML
<html>
<head>
[code].....
Read From A Textfile?
Jul 23, 2005I have a database with information of my users, lets say their date of
birth.
I want them to be able to go to my site, and login with a username and
password, after which they get to see what their date of birth is (according
to what's stored in the database).
I want to upload a textfile named "userinfo.txt" structured like:
<username>;<password>;<date of birth>, for example:
"johndoe";"johnpass";"1985-11-25"
"marydoe";"marypass";"1986-02-12"
What's the javascript to have a "username/password" box popup, and when a
valid name/pass was entered show the appropriate date of birth?
Read-only Loading Of An XML
Jul 23, 2005I use Microsoft.XMLDOM load() method to load an XML file into memory
and display
some elements in the browser.
However it apparently locks the file, since I get this error message
whenever a Visual Basic application concurrently tries to add an
element to the same XML file:
The process cannot access the file because it is being used by another
process.
I would like not to lock this file, but open it in read-only mode
instead. In fact the browser simply needs to read its content, it
doesn't need to modify it at all. As a consequence there is no reason
to lock it.
At the same time, I need to access it from the VB process.
How To Read The Attribute's Name ?
Jul 23, 2005How can I read the object's attribute's name ? I mean something like this:
x = new Object
x.myAttr = 5
and how to get the 'myAttr' string ?
Cannot Read Ext Src Array
Jul 23, 2005I have an external file, TestVar.js with a single line.
NewsA("This is a test.","test.pdf","TEST")
Within my HTML I wish to use the array variables from TestVar.js, but
can't seem to get them loaded for use. The following is what I have,
but doesn't work. If I directly place the NewsA array in the script
instead of trying to call it from the js it works just the way I want
it, but I really need the external file. What am I doing wrong? Code:
Read Cgi Response
Jul 10, 2007I need to parse a response from a cgi script. The response is te
following:
<HTML>UID=834<HTML>
the call for the cgi is http://<server>/cgi-bin/getuid?FILE=uid.html
Now I need the UID in a javascript.
1) call cgi
2) put UID into a variable
How do I have to do that? If I call the cgi the response will be
displayed on the screen but I just need it in the variable.
Read These Parameters From URL?
Jan 20, 2010I want to pass parameters thru URL. I know how to pass. I am finding problem in reading the parameters. here is the [URL]. how to to read these parameters from URL using java script?
View 3 Replies View RelatedHow To Read Cookie Set With PHP
Feb 16, 2010I'm trying to read a cookie that I've set with php with javascript. The cookie is for storing the username when logging in to a site. If the cookie has been set I want the focus in the inline popup to target the password field so that the user doesn't have to tab down from the username field of the login form.
The php script stores the cookie perfectly:
if (isset($_POST['remember'])){
$expire = time()+60*60*24*30;
setcookie("login_username", $username, $expire);
echo $_COOKIE['login_username'];
} else {
if (isset($_COOKIE['login_username']) || isset($_COOKIE['password'])){
$expire = time()-3600;
setcookie("login_username", "", $expire);
}}
The javascript:
if (targetfocus == 'login_username'){
alert(readCookie('login_username'));
if (readCookie('login_username') == 'username'){
targetfocus = 'password';
}}
$("#"+targetfocus).focus();
...
function readCookie(name) {
var cookieName = name + "=";
var cookieArray = document.cookie.split(';');
for (var i = 0; i < cookieArray.length; i++){
var cookie = cookieArray[i];
while (cookie.charAt(0)==' '){
cookie = cookie.substring(1,cookie.length);
}if (cookie.indexOf(cookieName) == 0){
return cookie.substring(cookieName.length,cookie.length);
}return null;
}}
But when trying to read the cookie in the javascript code I receive null when I put an alert to the code. Why won't the javascript find the cookie? Is it because I'm running the site localhost on my laptop? Does that have an effect on cookies?