JQuery :: Better Way To Dynamically Add Form Fields

Jul 8, 2010

The site I am working on has a few forms that allow the user to add new form fields (textbox, textarea, etc.) dynamically. I am using a structure smiler to:
<form>
<label>Name : </label> <input type = "text" / >
<label>Age : </label> <input type = "text" />
<span id = "add_field"> Add Field </span>
</form>

<script type = "text/javascript">
$(function(){
//create a new field then append it before the add field button
$("#add_field").click(function(){
var new_field = " <label>Name : </label> <input type = "text" / >";
new_field+="<label>Age : </label> <input type = "text" />";
$(this).before(new_field);
});});

As you can see I create the field using javascript and just insert it before the add field button. However I have seen lots of other sites have a smiler sort of function but they seem to make an ajax call for the field as they use a loading-type animation during the few seconds it takes for the field to be added. My questions are : Which is a better way of doing this type of thing? And why is one better than the other? If it is better to create the field client-side should I change how I am doing it? Instead of creating a string representing html and appending it should I be doing it a different way?

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Jquery :: Altering Dynamically Created Form Fields ?

Mar 3, 2011

The link below is a stripped down section of a form.

[url]

The problem I'm having is with altering the names of the fields. I'm trying to add an identifier on the end. "_X_1", "_X_2" after the new sections are added.

NOTES:

Incidentally, "_X_" is a delimiter so the key can be converted into an array on the back end to extract data from it.

I can't alter the "repeater" variable because it would be extremely complicated on the back end.

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Nov 21, 2010

I'm having some trouble with my dynamically generated form fields.

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I want it so that each one can be changed individually, but I can't seem to be able to figure out how to do that. Heck if you change the first one's grade field, that colour follows the rest of the clones.

This is the jQuery I'm using to change the color of the thing.

$("select").change(function()
{
$(this).each(function () {

[Code]....

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Sep 22, 2010

I am not new to jQuery but I just want to ask the best way to approach this. Basically I have a textfield in which the user is going to type in a number (for example 20) and after this textfield lose focus jQuery will be triggered to create whatever number of textfields the user put before (in this case 20).

So, to illustrate: How many users do you have: [ 2 ](and after the field above lose focus, the below will be generated)

Fullname: [ ]
Fullname: [ ]

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Jun 24, 2011

I created a form that contains about 10 form fields and would like to add the option to dynamically add more sets of those 10 fields if a user clicks a word or a button but I need help. I'm a beginner when it comes to JavaScript. This is what I need to generate dynamically.

<div id="dynamicInput">
<ul>
<li>1</li>
<li><input name='textfield1' type='text' size='10' /></li>

[Code]....

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Jan 20, 2011

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Jul 27, 2010

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Mar 10, 2010

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Below is a start of what I had. Basically, it will disable the fields when I mouse out of them but won't re-enable them when I mouse back in. As you can see, I tried various combinations of events. (My code below also doesnt null out the other fields when the user opts to use a different field than the one they first began to enter info in).

<html>
<head>
<script type="text/javascript">
function makeDisable($ID){
var x=document.getElementById($ID)

[Code].....

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Nov 2, 2004

My client wants to upload multiple files to the server using the FILE type input of the form. Their requirement says that once they click the browse button of the FILE INPUT type , besides file browsing window another FILE FIELD is added at the bottom of this one. and when the user clicks the browse button of second, it adds another until the user clicks the UPLOAD button to submit the form.

I dont know it is possible or not ???? if yes then please tell me how.

The alternate way is to give drop down menu with number and when the USER chooses certain number then ..that amount of FILE FORM FIELDS will be added. i.e if user chooses 3 then three file fields are there to upload 3 files at a time.

I have written a script that i am pasting here, but when i choose the drop down menu and select value the FILE FIELDS are shown but the original drop down menu vanishes..
Please review my code and modify it or refer some script to me.

IF The first choice is possible, i mean adding each FILED by browse button click , then tell me its code, other wise modify this code that i am pasting or give me some link to download a premade script. Code:

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Jul 8, 2009

I am trying to assign values to a bunch of form fields. However, I don't want to loop through EVERY field in the form, just a specific subset of fields. The fields I am trying to change are all named similarly myField1, myField2, myField3.So, my thought is that I would like to use a for loop and loop through the appropriate fields by simply incrementing a variable and appending it to the end of the string "myField" in order to change the appropriate field.How can I evaluate "myField + iterator" into a useable reference to change the value of said field?

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Mar 1, 2009

So, I have a form that, when the user clicks on a link, uses J/S to generate extra form fields for extra information. I can retrieve the value of the dynamically generated fields using $_POST in I.E., but it doesn't work in Firefox (no value is returned). Retrieving values for the static fields is fine in both I.E. and Firefox.

Here's the code - is there a function I'm using that could be replaced with something more friendly to Firefox?:

<script type='text/javascript'>
var i = 1;
function addArea() {
var newArea = addElement();

[Code].....

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Jun 5, 2009

Currently, I have a php form with various inputs, and a div where I am embedding an (initially) empty open flash chart object.Right now, I am calling a php file on the submit of the form, which takes the form data, calls a python script to process the form data, and then creates an open flash chart object using the data the python script returns.There are a few problems with this:

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2. The processing of the form in the python code can take some time, so what I would really like is to have the chart "check" the output of the python script periodically and update the chart each time, adding the new data points to the old ones.

I know I can do all of these things with javascript and Ajax, I just can't seem to find any tutorials or examples that are exactly what I am looking for.

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Dec 3, 2010

I'm trying to validate a set of dynamically created field names, for example

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Image: <input type='text' name="s1[image]" id="s1[image]">
Name: <input type='text' name="s2[name]" id="s2[name]">
Image: <input type='text' name="s2[image]" id="s2[image]">

[Code].....

There can be any number of 'groups' but I would want to apply some validation for each item in a group. I can only see that the validation is done by specifying a id? however as the id's are going to be dynamically created how can I do this? can you validate for a css class?

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I have been looking for the past 2 days for a script that I can add and delete table rows.

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I have tried to change the code from input to text area but none of them worked.

Have you come across to a similar script.

I would appreciate any contributions.

What I am trying to do is a page where the user will add their employees details so we can order business cards for them. So I have fileds such as, Name, Tel Num, Email, Cell etc.

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Feb 13, 2007

I've created the code below which automatically adds two fields together (drop-down boxes),without the need for a submit or input button.Now,I am trying to do the same again, but this time instead of having drop-down boxes,i need to have text input boxes.(eventually i will be adding monetary values together).

-----------

<script type="text/javascript"><!--
function updatesum() {
document.form.sum.value =[code]......

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Nov 12, 2010

I am re-developing my website and want to use some Ajax/jQuery in it (so I am learning as I go) and I am not sure if this is possible so that is my first question:I have a registration form and I would like to know if after the person registering has completed their first and surname and the 2 sections of their postcode if I can use jQuery to run a PHP script to see if they are already registered before waiting for the form to be submitted and running a script then.I am thinking onkeyup (or similar) after the last field is completed but I don't know how that would work needing to also use 3 other field values.If this is possible, can anyone give me any ideas of examples that do this or how I can go about passing all the variables and running the scripts at the correct time.

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Apr 4, 2006

I want to give the user the abillity to add extra fields as needed.
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Jul 13, 2011

I want to add rows and columns on click. So, i have a table with columns and rows and I had a add and remove button. So I want the user to be able to add/remove more rows if they have multiple inputs/outputs.So what I want is when the user clicks on add.png, I want another row of Input and Description to appear underneath the current oneHere is my code..

<img src="images/add.png" width="15" height="15" align="right" >
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[code]....

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As this is client controlled, I do not know how many rows there will be...

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function calculatesumexcon() {
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I have the following code (at the end) that will create a new distribution row dynamically.

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<TD style="WIDTH: 10px"> </TD>
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[Code].....

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