I have made a drop-down list on my html form using <select> tag. I am using a onchange event for this select tag. My problem is that the onchange event triggers only when I use the mouse to change the value to drop-down list. When I use tab key to focus on the list and then change the value using up-down keys, the onchange event does not get triggered.
View 5 RepliesTHIS WORKS:
<html><head><script type="text/javascript">
function recalc() {
alert ('Entering recalc().');
}
[Code]....
The first example works, which shows that the recalc function can be called. The second example works, which shows that onchange will trigger an alert box. BUT, the third example doesn't work. Why can't I trigger a call to the recalc function from the onchange event?
The above 3 code postings are the entire programs. Nothing has been left out or modified.
I am using IE 8.0.6001.18702.
IS there a way to trigger an onchange event from a DIV,eg, I have a DIV like this
Code:
<div id="resultb"></div>
so, when i change the content on this DIV using
[code]....
Currently I am using an onchange event on a select menu and it is working fine. But if the user uses any arrow keys the event will not trigger. Is there any way to do that?
View 4 Replies View RelatedI have this onchange event that occurs after user selection of a dropdown menu. When a user makes a selection it queries the database and delivers some data.
The value of the dropdown is stored in a database, but the problem is when the page is refreshed the delivered data disapears, only reappearing if you change the dropdown.
How can I make the onchange event run when the page loads so that if there is already a selection, the database data will always be there, only to change if the user changes the selection?
Here is the JS:
<script type="text/javascript">
function showCustomer(str)
{var xmlhttp;
[Code].....
Is there anyway to trigger an onChange event without actually clicking etc.
I want to trigger it from a method. It sounds silly but I'm taking some code over from another developer and if I could do this it would save me days of re-writing!!!
I have 2 dropdown lists which are connected to a mysql database. When I select an item from the first dropdown list the second dropdown list should show item which are linked to the item from the first list. But the thing is I can select an item from the first one, but the second isn't showing anything.
In the mysql database I have 2 tables: hesk_programma and hesk_projecten. In table hesk_programma there are a ProgrammaID and Programma column. In table hesk_projecten there are a ProgrammaID, a ProjectNumber and a Project column.
ProgrammaID from the two tables are connected to each other, so when I select an item from the first dropdown list with the ProgrammaID AK, the second dropdownlist should only display the items with the ProgammaID AK from the hesk_projecten.
Here is the code I use:
PHP Code:
<?php
mysql_connect("localhost", "root", "");
mysql_select_db("bestellingen");
$query = "SELECT * FROM hesk_programma ";
[Code]....
By the way, one more thing. The ProjectNumber from the hesk_projecten table should be displayed (when selecting an item in the second dropdownlist) in a input text field.
I've written the following plugin
Code:
(function($){
$.fn.myPlugin = function() {
this.each( function() {
[Code]....
I can see all the anchors within the each function, but when I click link nothings happens.
alright, im working on a page that has a drop-down menu in it...it uses the onChange event to trigger the different links (only one at the moment, but still)...and now XHTML doesnt validate it as a recognizable attribute...so is there some way to somehow target the drop-down menu's onChange event from a separate .js file? heres the basic code:
Code:
<select class="members" onChange="if(this.options[this.selectedIndex].value) window.location=this.options[this.selectedIndex].value;">
<option>» Members</option>
[Code]....
also, does this need to be put into a <form> in order to be targeted?
i am quite frustrated with this. I have a dropdown with the values populating from database. Now when the user select "New" from the drop down, a new textfield should be seen which is in other case hidden. The code is working absolutely fine with firefox but its not at all working with IE. What could be the problem? What do i have to do extra for making it work.
Code in Head Tag
<script language ="javascript">
function abc()
{
if(document.form1.select1.value=="New")
[Code]...
In a <select> drop-down, the onchange event isn't called when
scrolling through the dropdown using the mouse-wheel and when crossing
over a new <optgroup>.
Using the example below, notice how the onchange event isn't called
when mouse wheel scrolling between A3 and B1, but it works properly
when scrolling between A1 and A2.
E.g.
------------------------------------------
<html>
<body onload="document.forms['myForm'].elements['mySelect'].focus()">
<form name="myForm" id="myForm">
<select onchange="alert('onchange event');" name="mySelect"
id="mySelect">
<optgroup label="Group A">
<option value="A1">A1</option>
<option value="A2">A2</option>
<option value="A3">A3</option>
</optgroup>
<optgroup label="Group B">
<option value="B1">B1</option>
<option value="B2">B2</option>
<option value="B3">B3</option>
</optgroup>
<optgroup label="Group C">
<option value="C1">C1</option>
<option value="C2">C2</option>
<option value="C3">C3</option>
</optgroup>
</select>
</form>
</body>
</html>
------------------------------------------
I want to reload an html page onChange event of dropdown list and retain the old values filled in the page.
View 1 Replies View RelatedI am trying to create a drop down list which depend to the value selected from the previous drop down list. I can add it without problem, but If I change again the value of the first drop down list I would like to remove the previous drop down list generated from the first value. If I try to remove it when I create the element, it even does not create the element, the remove element function seems to work because when you click on the remove link it works.
[Code]...
I'm creating a clickable <DIV> that calls the "resizeVideo" function.
jQuery("<DIV>").attr("id", "video1FullSize").click(resizeVideo);
This works great, and clicking the button repeatedly calls resizeVideo. resizeVideo looks at the ID of the item that called it (video1FullSize) to determine which video should be resized (video1).Now, I want to add some logic to also call this event when the window is resized. Before getting too involved in the issues surrounding how often the resize event is called on a window, I'm trying to simply "click" #video1FullSize to simulate the event.
jQuery("#video1FullSize").click();
jQuery("#video1FullSize").trigger("click");
I'm currently facing a weird issue with the onchange event. I have a web application where each blur event makes a call the webserver to store the value of the textfield. I only want to trigger that ajax call when something has changed, so i track the onchange event on each textfield to set a flag if something has changed.
The onchange event always fires to first time when i click outside of a textfield even if i didn't change anything in the field.
I narrowed it down to the following: A prefilled textfield always fires the onchange-event the first time you leave the textfield. An initially empty textfield does not fire the onchange event.
Sample code (IE 8 on Windows 7 computer):
script:
HTML:
I am asking jQuery to tell me which drop down option is selected in a drop down list - like this:
I would like to check if this was successful before I proceed. What are the possible return values for this statement?
If no id exists.
If no option is selected.
If some other problem occurred.
In these cases am I expecting a null return; an undefined return, a false return value?
And, based upon the complete set of return possibilities, what would be the best and most comprehensive tests I could apply to cover every base.
I am working on one of my first application in jQuery and after a really bad day I got stuck in something funny. This is the code reduced at the minimum. Basically, once created the link, I trigger it but jQuery doesn't catch the event.
<html>
<head>
<script type="text/javascript" src="jquery-1.3.2.js"></script>
<script type="text/javascript">
[Code]....
I have a table that has parts with multiple characteristics. Part Number, Height, Width, Capacity, Price, Etc. I would like to have a drop downs for all of these values, when a user selects one of these values it will filter the results into a list. Ex. user selects a part that has a Height of 6 and width of 10 it will only list those parts. As I said earlier, I have a script that will give me all the parts, however I am not able to make the onchange list parts with multiple values.
View 9 Replies View RelatedI have a page that displays a list of people playing in a tournament. I need to be able to generate a Leaderboard based on which players are manually selected by the admin. Next to each person there is a drop-down list. An admin can go in and select a "slot" that a player should be in on the leader board from 1 to 8, or leave it blank if none. What I need to figure out how to do is the following, when a change event happens on a drop-down list, and say the value 5 is selected, I need to check to make sure that 5 is not already selected in one of the other players drop-down lists, in other words, that the 5th leaderboard slot is not already full. if it is, display an error message and make them change that one first. how to do that with jQuery? I'm thinking it will have something to do with the each() function, but not sure exactly how the logic should work.
View 4 Replies View RelatedI have been struggling on a bit of code for a while now. I need to populate a second drop down list (Region) based upon the selection of the first (County).I have found a piece of code that works on its own and have adapted to suit my needs - see below. However, when I drop it into my main page the javascript is not working. It's because of the formObject but I just don't know enough to resolve this! Furthermore, I need the textboxes the user has already completed in the form to retain their value once the javascript kicks in as the completed form will submit to a database.This piece of code is working well . . . .
<?php
$link = mysql_connect('myhost', 'myusername', 'mypassword') or die('Could not connect: ' . mysql_error());
mysql_select_db('mydatabase') or die('Could not select database');[code]......
Wrote what I though would be a simple script to convert Fahrenheit to Celsius, feet to meters... and vice versa. It uses onchange="calculate(this)" in the input fields, so when the individual enters a number and hits tab or enter it automatically calls the calculate() function and does the needed conversion. I'm passing (this), 'this' being the input field, and calculate() pulls out the needed data for the conversion.
It works great in Firefox. But in IE or Opera, the calculate() function never even gets called. I've searched for an answer, but to now avail. I haven't written much JavaScript and am not entirely sure what's causing the problem. Kinda makes me think of Java, where if you want to use action listeners, you need to first instantiate a listener object. Is there somekinda event listener in JavaScript that Opera and IE want instantiated? Here is my code in it's entirety.
[Code]...
I have been having a lot of trouble with my code and made a tester code just to see if it works, but everytime I try and run it, it takes down the server. Does anyone see anything wrong with it? Code:
View 2 Replies View RelatedI use fckeditor at my form for a text area. I want to change te value for this text area with the onchange "trigger" of a select box.How I can do that? I used things like that but does not work
Code:
$('text_area').value= transport.responseText;
oFCKeditor.Value=transport.responseText;
I am trying to include two functions in an onchange when the user selects a new value from a select list: It is a quite big form form - There are one select list, when changed - TWO other fields in the form needs to change accordingly: I put the information back using ajax and place it within a <span id="blah"></span>; I have checked the span ids, and they are correct! Unfortunately, the second function disables the first one This is the select list with the onchange functions:
[Code]..
How does one trigger an event programmatically? I'm interested in how to do this in both the "Level 0" event model as well as in the DOM Level 2 event model.
View 2 Replies View RelatedIs it possible to trigger the certain event from JS function? I have an image with on click event handler assigned. Now if like to trigger this event for this image from some other function.
View 13 Replies View Related