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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Sep 14, 2004
I know this must be pretty basic but I can't get it to work. I've written validation for a text field- it should have no periods in it. I want to reset the value of the field then give the field focus, if it has a period. Here is my code:
Quote:
function checkTitle(field) {
var titleFilter=/./;
if (field.value.match(titleFilter)) {
alert("Please enter your title without periods.");
field.value=''
field.focus();
return false;
}
else {
alert("good");
}
}
I call it from onChange. It resets the value but the focus goes to the next field (or stays there I guess.) Is there a way to set the focus on the same field?
PS I should mention, this form has disabled the "Enter" key and I can't change that behavior. I've been tbbing between fields, and it is when I tab that I am experiencing the problem.
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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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Aug 12, 2007
i have a form in which a hidden field (initial value as Ɔ', and my javascript set it to Ƈ' when an event is trigged). In the same form, i have a reset field. But I realized that the hidden field is not reset to Ɔ' when i push the
reset button. If I simply change the node from
"<input type="hidden" id='IsChanged' value=Ɔ'>"
to
"<input type="text" id='IsChanged' value=Ɔ'>"
Everything is working as expected (the value is reset to Ɔ' when I
push the reset button) Why does this happen?
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Feb 15, 2012
Someone fixed this codes, i want the value inside the text fields will empty after submit the form..
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Jul 3, 2010
how reset old entries data in input field?I have a search field where the results are live updated when typing in. The problem is if you type the same letters as earlier. Example: You have searched for "Conditioner" the next time you type "C" the word conditioner comes up in the browsers entries and the search function.Didn't understand? Try the searchfield on the webpage and try search for the word "conditioner". After you se the result, type "c" in the same field.
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Nov 12, 2011
i think this will help people a lot, cuz i couldn't find any simple answer by googling 3 hours...i need a very very simple jquery form field reset.here is the picture what i need:
HTML Code:
<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.4.min.js'></script>
<script>
[code]....
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Nov 25, 2011
How to reset an input field to its default value, which is depend on another. There is a way to clear the input field but not resetting to its default value.
Example
I have 2 radio buttons. Depends of the radio button selection some other input fields are required. Those things are already done using the click function. It clears the input field. But I need to reset to its default value.
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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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Jun 15, 2005
<SELECT NAME="subcategory" class="small" onchange="this.blur();">
doesn't remove focus from the drop-down field?
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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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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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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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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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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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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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Dec 13, 2010
I have some fields on my form that are auto-populating with a difference from 2 input fields using onChange, easy stuff. The correct value is stored in the DB, to 3 decimal places (correct, since data type is a float with 3 decimals).The challenge I am having is to get the number that is auto-displaying on the form to format to 3 decimals. For example, when I enter the first number at 44.8, and a second number of 44.666, the onChange command displays '0.13400000000000034'. This is saved in the db correctly as, '0.134' and once the form is submitted the correct value of 0.134 displays since it is pulling directly from the db. I would like to format the onChange display with the toFixed command so the extra decimals don't show onChange.
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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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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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Feb 25, 2011
does anyone know a simple way to focus on a different text field after the user enters data in the first text field?
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Oct 3, 2003
Am creating a framed chat application and when the user types a message in the form field and clicks the submit button, the message gets sent to the display frame, but the message stays in the form field. How can i get the form to submit the message AND reset the form field to blank too?
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Oct 9, 2011
I have a table (not in a form) that has several input text boxes. I want to have a reset button that acts like the form RESET button. I thought I would use the following jQuery method:
Here's my reset button code:
Here's one of my table input lines:
I thought this would be simple, but I can't seem to figure out how to target the text that the user types into an input field before he/she decides to "reset" and start over.
I'm thinking that my problem is that I can't find the correct syntax for my line: $('input.firstname').value('')
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Nov 5, 2009
I've been trying to fix this.
Code below:
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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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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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Sep 29, 2005
is it possible to reset a SELECT-Tag to it's default value but not
reset all other form fields?
Here's an example:
<select id="myselect" name="myselect">
<option> value1 </option>
<option> value2 </option>
<option selected> value3 </option>
<option> value4 </option>
</select>
What I need is a Javascript function which resets the myselect-field to
it's inital value3. It may have been changed by the user to let's say
value4.
Setting the selectedIndex=0 will not work as it will select the first
(value1) option instead of value3. Same thing with selectedIndex=-1
which will select nothing.
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