JQuery :: Changing Text Field And Invoking The Onchange Event?

Mar 16, 2010

I have a text field on my page, whose value I am setting through the jQuery cal

$('#Expandable').val("fefefe");

However, when I normally type into the text field, certain events occur as the text field value changes. These events do not occur when I set the value like above. So my question is, after I set the value, how do I invoke any onChange handlers?

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Invoking OnChange Action When Programmatically Changing Checkbox State

Feb 1, 2010

I'd like to know if it's possible to invoke associated onChange action of check box when changing it's state with another javascript command... ie.

<input type="checkbox" name="y" onChange="javascript: func('var');">
document.x.y.field[i].checked = true;

When I execute last line I'd like func('var') to be run as well. Unfortunately it doesn't happen as of in the example above.

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Updating Related Text Field Using OnChange Event

Jul 23, 2005

I have a requirement in which, I need to capture a loan amount and the amount of down payment for that loan. According to the requirement, the user is going to enter enter the loan amount and then will enter the down payment in either percentage of the loan amount or an actual amount. I have designed a form to capture this information with three text fields, one each for loan amount, down payment in % and down payment in $.

So the user has the option of entering downpayment in $ or in %. If the user enter the down payment in $ then my code has to calculate the equivalent % value and populate the corresponding text field and vice versa. My question here is, what would be the best way to handle this
situation.

Shall i just use the OnChange event of the text field to handle this scenario? If I do that wont I be running into a loop?

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Can An Onchange Eventhandler Be Re-used By Invoking Rather Than Clicking?

Jul 20, 2005

I'm trying to call/ mimic an onchange function/ event after a user has
clicked a checkbox. In response to which a buncch of other ones need to be
checked as well.

The caveat is that each of those child-checkboxes need to have an onchange
action take place. All of these child-boxes *have* got a working onchange
eventListener attached (thx to an old post of Lasse Reichstein Nielsen).

Following a snip that suggests (or so the debugger suggests) that the
inputElement.onchange is void, so calling onchange becomes a bit hard.
Any suggestions?

.....
inputElement = _row2checkbox[tb.rows[i]["id"]];
inputElement["checked"] = el["checked"];
if (inputElement.onchange) {
inputElement.onchange();
}
.....

I did come up with a work-around but that ivolves some serious trickery.

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Onchange Event For Readonly Or Disabled Field?

Sep 14, 2007

In my program, I have GMap logic that outputs location information to
a disabled input field (was previously a label). Then, when a
user clicks on a link (to start a new map), I want to save the location
data to an array prior to server processing. So, onchange, save the
input field's value to array[last_click]. But, because this field is
hidden (or readonly) I am not sure how to go about this.

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Create An Anonymous Function For Onchange Event Of File Field?

Feb 28, 2010

I am trying to create an anonymous function for onchange event of file field, so that when a file is selected, the covering text field gets that value. I know how to accomplish this by adding onchange="", but I'd prefer not do that. The code that I have almost works, except that the function in the for loop can't call on the "i" variable that the loop uses.

for( i = 0; i < source.length; i++) {
source[i].onchange = function() {
name[i].value = this.value;
}
}

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JQuery :: Invoking A Function On An Event W/o Inlining?

Feb 4, 2011

I'm just getting started and I went over the initial tutorial. I created an HTML page like this:

<!DOCTYPE html>
<html lang="en">
<head>

[code]....

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JQuery :: DatePicker Text Field Not Changing To Black From Gray Color

Feb 22, 2011

I'm working on implementing watermark in datepicker text field (JQuery V1.8.9). I have a datepicker field with watermark set (dd/mm/yyyy). Watermark text displaying in gray color. When I select a date, the text field still having the gray color instead of changing to black color. but, when i key in the date and focus out, it's working fine. Also, this is working fine in Chrome but not with Firefox. I'm not sure the exact cause...

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Changing A Bit Of Text Via Field Input?

Aug 18, 2009

I'm building a template editor and changing some of the variables.

Part 1.

Only at DEALERNAME. Must present coupon at time of write-up. Cannot be combined with any other offer. 1 coupon per customer per transaction. Expires: 00/00/00.s

I need to be able to fill out two fields to change DEALERNAME and 00/00/00.
I found a way to do this but it required the output to be in a field. I need it the output to look no different than before.


Part 2.

I'm using this to change some text via radio button but I would like an option to select how many details are there is the first place. Say they only want 1 or 2 details and not 3.

Head
<script language="javascript" type="text/javascript">
function detail1a(){
document.getElementById("detail1").innerHTML = "Up to 5 Quarts";
}

[Code].....

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Changing Text Field Values OnClick?

Nov 15, 2010

I have a button that needs to increase/decrease the value of a text field when clicked. This code is working in Internet Explorer and Chrome, but not Firefox.

Code:

<a onClick="scorebox1 = parseFloat(score1.value); score1.value = scorebox1 - myscore; scorebox1 -= myscore;"><img src="images/minus.png" alt="Subtract Point" border="0" /></a>
<input size="2" name="score1" style="font-size:24px; width:50px; text-align:center; color:#FF0000;" id="score1" value="0" />

[Code]....

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Changing An Input Field To A Text Area?

Feb 5, 2010

I work within an application so I can not just code this field as a textarea. I have to work with what the applications renders.

I am trying to use javascript to change an input field to a text area.

I am having trouble just getting started on this. Doesn't anyone know if this is even possible?

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Changing Opacity Of A Div If The Text Input Field In It Is Active?

Nov 4, 2010

Yeah that was a loooong title. Hopefully it's clear enough :D Right now, my div changes opacity if it's moused over qua the following code:

style="opacity:0.3;filter:alpha(opacity=30)" onmouseover="this.style.opacity=1;this.filters.alpha.opacity=100" onmouseout="this.style.opacity=0.3;this.filters.alpha.opacity=30

but this isn't quite optimal, cause if the user mouses out, it changes back to fade, and the user can't quite see what he's entering. So I would like the div to have opacity=1 when one of the textfields in it is active and opacity=0 when it's not. Is there a way to do that?

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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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JQuery :: Changing The Value Of An Input Field With Val() Is Not Changing The Posted Value?

Feb 2, 2011

I am trying to dynamically clear the value of a form input field and then submit the form.When I used $('#my_field').val('') to clear the field, it was cleared on the screen but when the form was submitted the original value of the input field was posted.My browser is FireFox and I can see using FireBug that when the field is cleared, firebug is still showing the html code with the old value. E.G. <input type="text" value="old_value" />The same situation occurred if I used $('#my_field').attr('value', '') to clear the field.The same situation occurred if I actually changed the value of the field rather than just clearing it.To work around this problem I ended up using the $('#my_field').removeAttr('value') to clear the field before it was submitted.

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Can't Pass Value Of Text Box To Hidden Field On Event

Mar 31, 2010

I'm trying to pass the data a user types in the multisearch text box over to the listheader hidden field before the form is submitted. I need it to work in all browsers. The below code only works in IE (not FireFox) and it doesn't work if I hit the "Enter" button on my keyboard, only works when I actually click the "Submit" button:

<html>
<head>
<title>Untitled</title>
<script LANGUAGE="JavaScript">
<!--

[Code]....

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Update A Txt Field With The Current Date With Onchange Dropdown Field?

Aug 7, 2009

I want to create a javascript function where I have a dropdown list and onChage I want to update a txt field with the current date in the dd/mm/yyyy format.

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Very Basic Form Text Field Update Event

Aug 7, 2011

when the user types a FIRST NAME into the first name textbox this should update the paxname with the value and a space.when the user types a LAST NAME into the last name textbox this should update the paxname with the value therefore at the end of the process the paxname will have the full name of the person in order with spaces in between. also i would like the first name and last name values to be changed to proper case ie John Smith once placed into paxname the update process does not have to be instantaneous, it can perhaps update the paxname textbox when the focus is gone from the field in question, dont mind how it works as long as it updates.

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JQuery :: How To Bind Form Field OnChange

Dec 4, 2010

I have a form where I need to populate a field with a math equation using inputs in the form. Here's the example:
fieldA fieldB fieldC ... fieldJ
fieldX
As the user inputs a number in fieldA, I need fieldX to immediately change and display the average of fieldA - fieldJ if the field is not empty (valid entry for all field's is a number between 20 - 80). I don't have the ability to make many changes in the form because I'm using a product called Gravity Forms for Wordpress.

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OnClick Adds Text Field To Page (Limit 3 - Each Text Field Displays Different Text)

Nov 22, 2010

I have a text field (field1) already displayed on the HTML page. However, there's a link where you can add additional text fields to the page as well. When the link is clicked, the second text field is added successfully (field2), and when the link is clicked again, the third text field (field3) is added successfully. However, the third field does not add itself to the page, and the text for anything greater than a third field also isn't displayed after. This obviously means that my "fields" variable is not working right

<script language="javascript">
fields = 1;
function addMore() {
if (fields = 1) {
document.getElementById('addedMore').innerHTML = "<input type='text' name='field2' size='25' /> <span>Field 2.</span>";
[Code]....

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JQuery :: Appending To Onchange Event?

Aug 24, 2010

'm trying to use jQuery to append to the onchange event of each of the following input elements. The following code actually replaces the event. When the onchange event fires on any of the elements, I get one alert which just says "new". What I would like to see is 2 alerts, one that says "test?" where ? is the element that changed and another that says "new".

[Code]...

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JQuery :: Handle Onchange Event On A Div?

May 19, 2010

I would like to monitor the innerhtml change of a div, what is the best way to accomplish this since it does not have an onchange event.

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JQuery :: Binding An Event To A Select OnChange?

Jul 14, 2009

Here is the html:

<select name="activities_limit" id="activities_limit">
<option value="5" selected="selected">5</option>
<option value="7">7</option>
<option value="10">10</option>
<option value="14">14</option>
</select>

And the jQuery:

$("#activities_limit").bind("change", function() { alert("value changed"); });

I am not seeing the JavaScript alert though.

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JQuery :: Call OnChange Event Of DatePicker

May 4, 2011

I have a button and when I click on the button I want to reload my DatePicker accordingly and launch the beforeShowDay event of the datePicker from my click event. How can I do that? How to set the DatePicker date to the ListDate[0] date?

var
ListDate
=
new

[Coe].....

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JQuery :: Function Inside Onchange Event Not Firing?

Jul 12, 2010

$('#newPrice').change(function() {
this.value = this.value.replace(/[^0-9.]/g,'');
checkPrice();

[Code].....

Ok, so the above code will do the regex when the contents of the textbox changes, but it does not seem to call the checkPrice function I've placed after it does the regex.

I have the above on Change code in a .keyup event and it works as expected.

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JQuery :: Select Onchange Event Get A Value From Selects Table Row

Oct 23, 2009

I have a table that contains a select element like so

<tr><td>key value in hidden input</td><td><select>options</select></
td></tr>
I need to set
$("selectclass").change(function() {
//Find the value of hidden input in 1st cell of row of the select
list that was changed.
});

So when a user changes the option of the select i need to get the new value the option has been changed to plus the value from the hidden input and submit them via ajax to a method on the server. How can i get the hidden inputs value?

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Changing OnSubmit To OnChange Form Function

Mar 21, 2010

I have the following form working with on onsumbit function, but I would like to change it so that instead of having to click the purchase button to see total price, you only have to change the quantity text box input. I just can not seem to get it to work.

<script language="javascript" type="text/javascript">
function checkQuantity(frm) {
var succesful = false;
var numQuantity;
numQuantity = parseInt(frm.Quantity.value);
var numTotalPrice;

if (numQuantity != 0) {
numTotalPrice = numQuantity * 4;
frm.TotalPrice.value = numTotalPrice; //new String(numTotalPrice);
successful = true;
} else {
alert("Sorry must order more than 0");
successful = false;
} return succesful;
}
</script>

<form action="" onsubmit="return checkQuantity(this)" style="width: 193px">
<table cellpadding="4" style="width:111%">
<tr><td class="style1">
Quantity:</td><td class="formInputCell">
<input name="Quantity" type="text" style="width: 55px" /></td>
</tr><tr><td class="style1">
Total Price $
</td><td class="formInputCell">
<input name="TotalPrice" type="text" style="width: 55px" /></td>
</tr><tr><td class="style2"></td>
<td><input id="Submit1" type="submit"
value="Buy Now" class="buttonstyle" /></td>
</tr>
</table>
</form>

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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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Use Onchange To Reset Field Value?

May 20, 2011

I have a website which uses several forms to input data, each form contains fields for the user to complete and at the end of the each form the user has the option to proceed or go back.The problem is, on form1 there is a drop down box which determines the content of subsequent forms but when a user partially completes form2 but then goes back to form1 and changes the drop down box selection, the onchange function reloads the subsequent forms but it does not clear the previous form2 values so an error is generated because those inputs are not required with the change made to the drop down box. I have tried setting the ids to zero using getelementbyid on form1 but it does not seem to work presumably because the ids are on form2 not form1?

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JQuery :: Highlight A Radio Field And Then Pop Up An Input Text Box Field?

May 13, 2010

I am trying to make some dynamic effect to a HTML page using JQuery.<br/> 1.<br/> When the user clicks a Radio field, the field will be highlighted.<br/> 2.<br/> When the user clicks the Radio 'Man', <br/>a Input text box will be provided immeditely just below it.

Here is my simple HTML page, but I don't know how to do with the JQuery part:

<Table>
<TR>
<TD>Gender</TD>
<TD>

[Code]....

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Onchange In Asp.net Form Moves To Next Field?

Sep 16, 2009

Have an asp.net form where the textboxes have had the onblur attribute added. Though VS2008 still barks it's an invalid attribute...However, my problem is primarily w/the txtFICODate field.When testing using 10/10/2009 in this field, the code displays the appropriate msg based on format param. However, on exiting the isValidDate function in debug mode, I see that the code does not stop at the txtFICODate html but moves to the txtDOBB isValidDate function. Here the param is MM/DD/YYYY and it loops back into the function but now displays a different format message.Previous code (ValidateFICODate(obj)) below also caused the same looping error.

Debugging the same code with the txtDOBB field (10/10/56), I see it enter the function, display the appropriate message and exit. However, in debug, the code comes back to the function and then selects the field contents.how to fix problem so code stops at the txtFICODate field .Using xp Pro SP3, visual studio 2008 (c#).in the process of writing this, I searched other post here related to onblur + loop. So changed the event to onchange...and while the looping does not now occur, the focus just moves to the next field.

On page load code(if (!isPostBack)):
txtFICODate.Attributes.Add("onblur", "isValidDate(this, 'MM/DD/YY');");
txtDOBB.Attributes.Add("onblur", "isValidDate(this, 'MM/DD/YYYY');");

[code]....

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Blur SELECT Field ONCHANGE

Jun 15, 2005

<SELECT NAME="subcategory" class="small" onchange="this.blur();">
doesn't remove focus from the drop-down field?

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Check Checkbox OnChange Of Another Field?

Mar 2, 2011

I have a form that is basically a table from my database.I have checkboxes on the left and only those checked get updated on submit.I�m trying to make an function that is called with an onChange event that will check the box if any of the fields in that row are altered. The id of the checkbox is checkeds[i] where �i� is the row number.The function is firing, but the box isn�t getting checked.

Code:
function checkBox(row)
{

[code].....

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JQuery :: Changing Value Of Hidden Field Inconsistent?

May 29, 2010

I am working on bringing my existing website to the iphone/ipod using jqtouch and jquery.

I am stuck using the following code to change the value of a form's hidden field with the value of a clicked link. It works for the first two clicks then no matter what other link is clicked the form's hidden field value is changed to the value of the first or second clicked link?

Is there a more robust, reliable way of achieving my aim?

...$(document).ready(function(){ $('a[name]').click(function() { var str_id = $(this).attr("value"); $("#bookingperiod").val(str_id); }); });...<div class="info">Thu Jun 3rd 2010</div>

[Code].....

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JQuery :: Changing Form Field Attributes

Feb 3, 2009

I've got a set of input fields of type text, that I want to change to hidden. The fields are identified by the class name .navtitle. Here is the code I've written to try and change the fields:

Code JavaScript:
$(".navtitle").each(function() {
this.type = "hidden";
});

This works fine in Firefox, but doesn't work in IE, and worse still, breaks all of the other JQuery code I've got as well.

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Select Onchange Alter Another Field On Same Page?

Aug 4, 2010

I have a multiple fields on my page and wish to have a reusable javascript to update the previous box with the selction made.how would this be done

<form name="form1" method="post" action="">
<p>
<input type="textone" name="textfieldone" id="textfieldone">

[code]....

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Add An OnChange Behavior To Dynamically Generated Field

Apr 26, 2007

I want to add an event to a generated SELECT field. It's an onChange call to a function named calculateSubtotal(). The result I want would look like <select name="..." id="..." onChange="calculateSubtotal()">.

This is what I've got so far. The drop menu is created with no error, but no onChange either. Code:


var newTour = document.createElement('SELECT');
newTour.name = 'registour' + rowCount;
newTour.id = 'registour' + rowCount;
var newAttrib = document.createTextNode('onChange="calculateSubtotal()"');
addOption(newTour, '');
addOption(newTour, 'Tour 1');
addOption(newTour, 'Tour 2');
addOption(newTour, 'Tour 3');
document.getElementById('groupreg').appendChild(newTour);
document.getElementById(newTour.id).appendChild(newAttrib);

I also tried this, it doesn't work either:
newTour.onchange = 'calculateSubtotal()'

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JQuery :: Changing URL After Event?

Feb 24, 2011

So I have a navigation I am working on that could beadaptableto any site. You click on a link and new content arrives with fade in / out. Pretty standard. However, I would like the URL to change so it can be copy/pasted and/or bookmarked. The code below works, but the fades don't work. Also, I know this 'breaks the back button' and I plan to tackle that next.

$(document).ready(function() {
$("#nav a").click( function ( event ) {
event.preventDefault();

[code]....

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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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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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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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