Anything Better Than OnChange - User Changes Information In A Textbox As Appose To What OnChange Does?
Jan 28, 2011
Is there something that will update as soon as the user changes information in a textbox as appose to what onChange does, which is update once the focus has been taken off of the textbox? I am writing a custom cart and I am using AJAX to update the price according to how many they are ordering, I was hoping to have it update the price as soon as the user put in the volume, but it doesnt update until the user clicks somewhere else on the page.
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Jul 4, 2006
There will be 2 option value,1st is yes,2nd is no.If person select "yes" textbox will appear below selection area,if person select "no" a link will appear,and will redirect you to there when you click on it.
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Feb 10, 2010
Can I target the element and base an onChange outside of directly calling it in the element tag?
Due to the nature of my script, the best I can do is wrap a tag around the element.
example of what I am trying to do
Code:
<script>
document.form.field1.onchange = function();
<script>
And if this might work, can I call it in the head or must it come after the element.
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Aug 22, 2010
My question is I have this for form with couple options and a text box and what I want to do is when user selects the "none" textbox to be enabled and if user chooses "mysite" option textbox to be disabled so user can't put his/her input.
Here is my code:
Code:
<form id="form1" method="post" action="">
<label>
<select name="none" id="noneid" >
<option value="none">None</option>
<option value="mysite">Mysite</option>
</select>
</label>
<label>
Another
<input type="text" name="another" id="anotherid" />
</label>
</form>
I think I need a javascript function to trigger by onchange event to disable or enable textbox depending on the user input. But I don't know how to write that function.
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Jun 22, 2010
I have a form consisting of nine text fields (labelled 1-9) and nine radio buttons for each of the text fields. I want to enable the radio buttons when text is entered into the field corresponding to that particular radio button. Is there a way of achieving this using a JavaScript onChange event?
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Aug 19, 2010
I have a registration page with a username field and every time a character is type I would like to call a javascript function to test for a unique username. My function is working fine but I'm currently using onChange to call it and I noticed that onChange is less of an actual onChange and more of a onChange if onBlur. Is it possible to run the script every time a character changes even if the user is still typing? Note, I'm using ASP.NET in VB to write this page but I'd like to do this with javascript and not post back if at all possible.
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Apr 8, 2011
This is a calculator that calculates how much a user can earn from their referrals depending on the user's Level & Member type. It's supposed to be updating live (onChange) when the user types in new values in the fields, but nothing is happening. [URL].
Code:
<html>
<head>
<script type="text/javascript">
function calculate(){
// eval makes the script know the value is a number, and not text
var myLevel = eval(document.earningsform.level.value);
var memberType = eval(document.earningsform.type.value);
var viewed = eval(document.earningsform.viewed.value); .....
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Oct 29, 2010
I have a HTML form containing two text box controls in it and a submit button. When a user enters information in those two textboxes and click on submit, the information is sent to a function in Javascript. In the javascript, the information from those textboxes is stored in a javascript variable. The problem is as follows:When I am inputting string text in the html text boxes and in the javascript when I am trying to print those values, it is giving me out an error saying NaN. However when i input integer values in the text boxes it is printing those numbers. Is there a conversion that I have to do for the string to be printed. I am new to Javascript and need your help. This is a basic code of Javascript. Below is the code that I have.
<html>
<script type = "text/javascript">
function square(form)
[code]....
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Jul 23, 2005
In the next sentence, what's wrong?
<select name='id'
= 'Daniel Perez'&valor='+this.options[this.selectedIndex].value">
IE complains about missing ";"
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Jul 23, 2005
I understand that the onchange event occurs when the value of a
form element changes (and after the element loses focus).
But what about the case where the value of a text box (for example)
is changed from a javascript function? Is an onclick event triggered
in such a case? I find that this is not happening in IE.
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Jul 11, 2006
I have a big problem with a simple event : onchange!
If I write this page:
<html>
<body>
<form id="vu">
<input id="var01" name="var01" size="5" onchange="return false;"/>
</form>
</body>
</html>
everything is ok in IE (I can't leave the input zone !) but nothing happens in Firefox!
It looks like the event is not fired or...
Do you have any clue?
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May 23, 2007
I have a button that opens a calendar and populates a text box. I use
the onclick event to open the calendar.
Now the textbox has a onChange event that calls a function. The
onChange fires perfectly if I type the date on the textbox, but if the
calendar changes the date on the field then the onChange event doesn't fire.
I even try the following, but it seems that both functions run at the
same time and the value on the field is never picked up.
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Jun 14, 2007
I was working on a site that uses Google Checkout buy now buttons, and
I wanted the product picture to change based on what was picked. I was
able to have it change the picture, but if you pick a new item after
that, it keeps the same picture. Here;s the code:
The box (only the first part):
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Jul 20, 2005
I've written some kind of menu to display a diagram with input fields
for a budget plan. A user should be able to change values, which are initially filled by
a database value, and get all corresponding values filled by the
program.
//value given by database
showText[k].setAttribute("value", eval("liste[i][TEXT" + k + "]"));
//onchange event for the user to change the value
showText[k].setAttribute("onchange", "calculate('cost" + i + "')");
//function to recalculate corresponding values
function calculate(myId) {
if (myId == "initial") {
...
}
else {
myId = myId.slice(4);
//getParents(myId) returns corresponding values for myId
var myParents = getParents(myId);
for (var i = deep; i >= 0; i--) {
var sum = 0;
for (var j = 0; j < myParents.length; j++) {
...
for (var k = 0; k < children.length; k++) {
sum +=
parseFloat(document.getElementById(eval("'cost" + children[k] +
"'")).getAttribute("value"));
}}}}}}
My Problem is:
IE and Netscape always use the value initially entered by the database
and not the new value entered by the user.
Is there a timing or DOM problem?
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Jun 1, 2011
I have the following code running on my site...
Code:
<script type="text/javascript"> function test_func() { alert("You clicked the map."); } </script> <form action="#"> <input type="button" onclick="test_func();" value="Test"/> </form>
It works fine, but I want the form to call test_func onchange instead of onclick. I want to add an input type='text' named call_func that when changed, will call the test_func function.
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Jun 2, 2007
I'm having problems. I am collecting data from an XML file and serving it up to a web page. Here's the code.
The thing is, I have taken a Submit button away and want the data to appear as the user types. I tried using onChange event handler but it only works when I click the mouse away from the input box, like an onBlur() event. Code:
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Oct 26, 2007
I have 2 html menu.html and menu2.html, and would like to swich one another using "onChange" in each form. function pageCh works first time, but it doesn't 2nd time.
alert("menu2") does not pop up either. Code:
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Jan 19, 2006
How can I change a select list when a user enters a value into a text box? Like with the below form I would like to have the select box change when the user enters a value in the "id" text box that matches a value in the select box. Say the user types "1122" in the text box I would like the select list to change to to show "John". Is this possible ....
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May 16, 2003
I have a web-based form which allows users to enter marks for a group of examination candidates. I have a function which performs some calculations on the data as it is entered and displays it immediately. The data-entry form-part definition is:-
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Sep 23, 2003
does anyone know of a way of forcing the onChange() event of a control (it happens to be a <SELECT> if that is relevant) to fire off? (That is apart from the obvious one of changing the value with the mouse / keyboard!!!!)
I have some code which alters the currently selected element in a list and I need the list's onChange to then be fired off. The code is designed to work with many different lists, so I can't hard-code the same functionality into my code that is normally provided by the onChange.
I've tried ....element.onChange() and .....element.Change() but neither of these seem to work.
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Dec 29, 2004
<form> onchange event doesnt work in IE. but works in Mozilla. Is there any other alternative in IE for <form onchange>????
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Oct 11, 2005
I'm making a form and I need it to do this:
From a drop-down box, the user chooses their country.
- User selects a country other than Australia, nothing happens.
- User selects Australia, another drop-down box appears with Australian states
* If they select a state other than Victoria, nothing happens
* If they select Victoria, another drop-down box appears with Region
I'd like the subsequent drop-down boxes to be either inactive and unclickable (technical terms here ) or not visible at all until the above conditions happen.
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Nov 22, 2005
I've built a validation function which works great when you submit a form by clicking a button. However now I want to submit the form when the value of a input textbox changes. Actually it works fine to submit the form on the event onChange but it doesnt validate.
This is my code:
<form method="post" action="put_cart.asp" name="form1" return validera(this)">
<input name="product_id" value="<%=rs_mycart("Product_id")%>" type="hidden">
<input type="hidden" name="the_cart" value="yes">
<input type="text" name="quantity" value="<%=rs_mycart("Quantity")%>" size="3" >
</form>
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Jan 2, 2002
I'm trying to design a bracket for our office to use for the NCAA tournament this March. I'll have drop down menus for the user to choose the winner of each game and I'd like for the drop downs to change dynamically, based on what has previously been selected. Ideally, this code below will change the third drop down menu to contain the values of the first and second fields. Code:
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Feb 14, 2007
I have a select field that has an onchange attribute that fires an ajax script to fill out another field. It's working perfectly in every browser except IE, but I just cannot figure out why it's not being triggered in IE. Code:
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Mar 8, 2007
I want to check that the text box does not contain any thing other than numbers when any single key is pressed and do not allow keys other than number.
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