Cancel OnChange Event

Jul 23, 2005

I Have a text box in a jsp that is pre populated. The text box should accept only numbers and it should be greater than a minimum value (this value depends on the user settings). If the user enters a value less than the minimum value, i should pop up an alert saying that the value
entered is incorrect and reset it back to previous correct value. How could i do it using onchange event of the text box.

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Using An Eventlistener To Cancel An Onchange Event

Nov 15, 2006

I've got to write some javascript to listen for a select 'change' event. Unfortunately, the select box has an onchange event as well. For example:

<select name="test" onchange="document.form.submit();">

Here's my event listener:

function handle_submit() {
return false;}

function addListeners() {
if (document.addEventListener) { document.form.test.addEventListener('change',handle_submit,false);
}}

window.onload = addListeners;

Now, the event listener does capture the event, but I want to cancel the onchange event within the select box. Is that possible?

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How To Cancel An Event

Jul 14, 2009

I have this function I'm firing to execute the "delete" of an entry

Code JavaScript:
$(document).ready(function() {
$(".post_tools a.deletelink").click(function() {
var container = $(this).parents('.comment').attr("id");
var scriptLoc = $(this).attr("href");
[Code]...

The function executes the alert and if the user selects "OK" it completes successfully. However, if the user chooses to back out of the process when the alert fires by closing the alert, the function does not get canceled, it completes the delete of the comment. What do I need to do to make sure the user can successfully cancel this process when the warring is delivered?

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How To Cancel Input Box Event

Mar 24, 2010

I've been trying to do something and it's killing me because I can't figure out how to do it properly. I have an input box. I'm validating as the user types. Basically deleting forbidden characters as they type. I'm doing it with the onkeyup event. Problem is this looks kinda crappy because the character they type appears briefly and then get's deleted. I want to know how can I cancel the event that writes on the input box so that instead of deleting the character myself, I just cancel the event. I have no idea if the input box or the window is the one responsible for doing this.

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Cancel Dragenter Event Bubbling

Jun 15, 2010

building a tree using UL,LI tags as below. Issue seems with cancelling event bubbling. trying to cancel dragenter event to avoid dragenter firing for root LI. dragenter on image cancels bubbling. But dragenter on the child text bubbles and fires for Root. Whole purpose is to identify LI where its dropped. Edit: Noticed this is working as expected in IE6 and not working with IE8.

[Code]...

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Cancel The 'unload' Action In 'onbeforeunload' Event

Jul 23, 2005

What code can I put in the 'onbeforeunload' event to cancel the 'unload'
action (when user closes browser) and then present the user with an
alert saying that he/she must use the logout button.

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JQuery :: Cancel Combo Change Event?

Sep 2, 2009

I've got 4 identical combo boxes like the one below.

[Code]...

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JQuery :: Cancel Click Event In Treeview?

May 10, 2011

I m going to use jquery treeview at...

I need to block node collapsing on Click, instead bind them with custom functions.

I tried to locate possible tweak point via click events, but still couldn't manage to do the needful.

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JQuery :: Cancel A Mouse Click Event?

Oct 3, 2010

I'm trying to cancel out a mouse click event on a specific div so that it does nothing, (although there is a link to a pdf in the div that needs to work). this div's container div is an overlay has a jQuery function assigned to it that fades it out, but it fades out itself and this contaned div, (the one that i want to cancel the mouse click event), how can i do this?!?

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JQuery :: OnChange Event - Web Application - Each Blur Event Makes A Call Webserver To Store Value Of Textfield

Jan 21, 2010

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:

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Onclick Event - Js And ASP.NET - Cancel Button To Prompt The User To Verify Cancellation?

Dec 7, 2009

Doing web page with ASP/VB.NET. Have text boxes for UI on page. Two command buttons - Submit (for db update) and Cancel. I need the Cancel button to prompt the user to verify cancellation. Need OK/Cancel buttons on alert. If user selects Cancel-no action. If user selects OK then I want the text boxes cleared of user text input and focus returned to first text box. I think this may be the code but do not know how to apply it.

function Clear()
{
var res=window.confirm("Please confirm cancellation-text boxes will be cleared"); [code].....

Is this code valid or invalid for the events I need? How do I set it to fire when user clicks the ASP Cancel button?

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Trigger OnChange Event Without Event

Aug 22, 2006

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!!!

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Function With Onchange Event

Jul 23, 2005

I have an array with mysqls data. I have used this array with several text
box in a formulary.

My question is: How could i use the event onchange to make a function which
update the data of array when i would have change data in a text box.?

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OnChange Event Is Not Working

Jul 23, 2005

In JavaScripts checks for an onChange event against the value of the
textbox at the time of the last onChange event. Since an onChange
Event never fired after you changed the text first time , suppose we
put the same value in the text box then no event is fired.

If we put some other value then it became fired...
It wouldn't fire if we put the same value...

I don't want to use onBlur etc... Isthere any solution with onChange
Event...?

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OnChange Event And Focus()

Jul 23, 2005

Am I right in assuming that you can NOT set focus() back to a field in
its onChange event? Is there another way - I have validation that I
would like to set the focus back to the invalid field onChange?

Eg:
<input type=text" name="tstfld" onChange="window.alert('Changed!');
this.focus()">

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Using Javascript In The Onchange Event

Aug 7, 2006

I'm trying to get a tick box to tick automatically when the user changes the
textfield called comm. my code is below but it doesnt work.
Can anyone see why?

function changed(x)
{
document.getElementById(x).checked;
}
<input name="changed" id="ischanged" type="checkbox" value="">
<textarea name="comm[]" rows="2" class="BodyText" style="WIDTH: 99%"
onChange="changed(ischanged)"><?php echo stripslashes($comment);
?>
</textarea>

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Onchange Event For A Dropdown?

Jun 9, 2009

I have a drop down list in html which contains 3 items; Black, white,blue..If i select "Black", a pop up window should come up. (Alert or confirm)JS and need to complete My academic project work.

<select id="mylist">
<option value="White">White</option>
<option value="White">Black</option>

[code]....

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Add An Onchange Event To A Select Tag?

Nov 12, 2009

I am trying to add an onchange event to a select tag.

This is my code, but it does not appear to be working.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">

[Code]....

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Form Onchange Event?

Jan 6, 2011

I would like to use some event handling on a form, not something I have done before and looking for some assistance. Here is my code:

<select name="LocO">
<option value=""></option>
<option value="O">Outside</option>

[code]....

So what I need to happen, is based on the selection of the first selection box, some of the options of the other selection boxes should not be available.If Outside is selected, everything in LocA should be available, but only up to 4 in Loc1... and if Inside is selected, only up to E should be available in LocA and everything should be available in Loc1.

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Show Div On Onchange Event?

Mar 1, 2011

I would like to have a dropdown to only show when a certain value is chosen from another drop down.

So if in this dropdown the value ETS Rep Discount is chosen he should show the other dropdown

<div class="row">
<div class="fieldName">Discount Type</div>
<div class="fieldValue">
<asp:DropDownList ID="discountTypeDropDownList" runat="server" AutoPostBack="True"
Width="295px"

[Code]....

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Onchange Event Of Select Box?

Jun 23, 2009

I want to make one application using javacript or may be it is in ajax. Let me explain my problem: I have one select box name person which have value 0,1,2,3,4,5 . Now i want that when user will select value 1 from select box then person 1 first name , last name input type box will appear only one time in a row. and if we will select 2 from select box then two row will appear naming person1 and person2 like this: if we will not select any value by default is 0.then it will not show any row regarding person.

[Code]...

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Way To Trigger An Onchange Event From A DIV?

Mar 9, 2009

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]....

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Onchange Event Will Not Fire?

Sep 22, 2011

HTML Code:
<html>
<head>

[code]....

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Onchange Event Not Being Registered?

Apr 30, 2010

for some reason the onchange event does not get called in the following code:

<form:select path="parent" onchange="theFunction();">
<form: option label="--Please Select" value="-"/>
<form: options items="${listParents}" itemLabel="description" itemValue="id"/>

[code]....

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Onchange Event With Function?

Oct 14, 2010

I'm having some difficulty in accessing an 'external' function from my onchange event. It will work when the function is included 'inline,' but it's not working when the function is 'stand alone.'Additionally, when it works, the variable isn't being passed - the alert I use says "[object Event]"

Code:
<head>
function nameTextBox2(selectBoxName)

[code]....

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OnChange Event And SelectedIndex?

Feb 10, 2011

I'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?

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