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.
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?
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?
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;
}
}
I'm not sure why I'm having problems with this but if I try to retrieve the
value of a readonly text form I get back that the object is undefined.
The reason the text is readonly is because it's a date which I set via a
calendar javascript program (associated with a button) only so the user
can't put something silly in requiring validation.
The form send the data correctly when submitted it just doesn't seem to be
able to be read.
On blur of field1, field2 is set to READONLY but the cursor on my page then defaults to field2 and the cursor is at the END of the value and when the user clicks the backspace button the value can be erased. I would like the ability to have the cursor move to the next NON-READONLY or ENABLED field on the page. Is that do-able with jQuery?
[Code]...
There are two ways for me to make a input field readonly:
1)hardcoding:
In a JSP, I use <input type="text" id="test" readonly="readonly" value="1234abc" />
The field will become readonly--I can not edit the text in the field. This is what I wanted.
2) Dynamical:
But sometimes I need to achieve this at the runtime/dynamically:
Now in the javascript:
The field will display as readonly. However, I can actually highlight the text, delete and edit it.
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.
View 2 Replies View RelatedI'm trying to to enable a text field with javascript (it is disabled originally). The name of the text field is duo[x]. (I need to keep the brackets so php will reconize it as an array.) In javascript, I was trying to use to use: document.form.duo[x].disabled = false; (but that didn't work).
Here is what I have right now:
Code:
<html>
<head>
<script type="text/javascript">
function change(code) {var a = "Duo[" + code + "]";
document.form.a.disabled = false;
}
</script>
</head>
<body>
<form name="form">
<select name="select" onchange="return change(x)">
<option>Opt 1</option>
<option>Opt 2</option>
</select>
<input type="text" name="duo[x]" disabled></input>
</form>
</html>
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 have a disabled submit button sitting in the fieldset of a form. What I'd like to do is attach a click event to this button, but from what I understand this can't be done since you can't attach events to disabled elements.
Is it possible to attach it to the fieldset? I'm not completely familiar with event bubbling but maybe it's possible to capture the element clicked?
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 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?
View 2 Replies View RelatedHave 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]....
<SELECT NAME="subcategory" class="small" onchange="this.blur();">
doesn't remove focus from the drop-down field?
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].....
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.
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]....
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()'
I have an array with mysql´s 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.?
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...?
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.
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()">
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>
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]....
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]....