Populate Dynamic Dropdown List In Form?
Oct 1, 2010
Have a WAMP setup with Apache, PHP and Mysql service and I�m working on a HTML form which will have two drop-down controls where information is extracted from two tables in my DB.The first drop-down list called (name="sel_ControlArea") will decide what information the second drop-down list will have.So far I have managed to populate them when the page is loaded using PHP but run into problem when I make a change on the first drop-down list.Question one: What is the best/correct way to solve this problem?Is it to load all information into PHP arrays and then translate these to Javascript arrays, or should I go for AJAX, or XML or are there any other better ways ?I have tried to solve this using the first method, put data in a PHP array but run into problem with this data not properly loaded.This is first time for me to pose a question so please let me know if I have left out some important information or if I should describe this problem in a different way.
<table class="exemption" border="0" cellpadding="2"
cellspacing="5" bgcolor="#eeeeee">
<th colspan="2" align="center">Security Exemption Request</th>
[code]....
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Jun 29, 2010
how to populate a dropdown based on Another dropdown selection. This all should be a dynamic. Eg: I have two text boxes one is TechID and other is JOB ID. When I start typing Tech ID it suggests me the list of IDs which start with the input string i have put in Tech textbox. When i select the Tech ID the jobs associated to that Tech ID should be displayed in JOB ID text box as a dropdown list.
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Sep 13, 2004
I have 2 dropdown list in my html. Is possible for me to populate the option values in the second dropdown list depend on what I select in the first one?
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Dec 3, 2009
I have set up my website quite some time ago that has served its purpose very well, however I will now be adding an order form functionality. So far, by reading books and traversing forums, I have been able to develop a page where the user
1.Enters data into the required fields, that is then submitted to a MYSQL database via PHP,
2.Can retrieve orders that are stored in the database,
3.Delete orders that are stored in the database.
I have wamp installed on my computer as the webserver. I have also incorporated two drop down lists that both retrieve their values from tables within the database. The first drop down list retrieves the Australian States that I have stored in a table, and once the submit button is pressed, it stores the State that is selected to a separate table. This drop down list functions as it should. An extract from "From Place an order.php"
<?php
$dbcnx = @mysql_connect('localhost', 'root', 'tingling');
if (!$dbcnx) {
exit('<p>Unable to connect to the ' .
'database server at this time.</p>');
} .....
The second drop down list retrieves product names from a table that contains products and their prices. What I would like to happen, is that when the product is selected from this drop down list, a text box is automatically filled with its corresponding price. I had this drop down list working as per the "States" drop down list, but could not get it to auto populate the text field. I got some assistance from a friend and was able to get the text box to auto populate with its corresponding price, however when the page was submitted to the database, the "id" number of the product name from the drop down list was stored, and not the product name.
<select name="productSelection" onchange = "getProductDetails(this)">
<option selected value="1product">Select Product</option>
<?php
$products1 = @mysql_query('SELECT * FROM products');
if (!$products1) {
exit('<p>Unable to obtain author list from the database.</p>'); .....
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Sep 3, 2011
I am developing a messaging service between members of my site. I am developing this with asp.net mvc. When a user goes to the SendMessage view to send a message to another member, there is a dropdown list which presents the sender with all the members of the site, which he or she will pick as the recipient. However, i don't want it to be a dropdown, i want it to be a text box, where a user types in the first couple of letters of a name, and the dropdown appears then with only the members which have the same couple of letters. This is basically like every email system out there (facebook and gmail have it just like that). And after they chose one, they can select another one in the same textbox, just separated by a comma or something like that. Basically, how do i achieve that in javascript? I'm not even sure what that functionality is called, that's why i had to explain it properly.
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Jun 30, 2009
I've been beating my head against a wall for a few days trying to get this working. I'm trying to create a dynamic menu where a user selects one item and another select list is shown, then another and another (and so on). Here is my JS, it *should* be taking the ID of the div, comparing it to the selected value and then showing another div by settings it's class property to visible:
[Code]...
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Jun 23, 2011
Using Jquery I want to populate a 2nd dropdown from the choice of the first dropdown.
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Oct 14, 2010
The first dropdown has some options as :
abc(a)
bcd(a)
cde(b)
[Code]....
On selecting abc(a) in first dropdown the 'a' must get selected in second dropdown,on selecting cde(b) second dropdown must have 'b' and so on,also the second dropdown value should be disabled(grayed out) for user.Need the code in javascript.
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Feb 15, 2012
I would be grateful if somebody can advise me how I can build site same as [URL] namely, I want to creat same search form on my site where I can search items by location, etc. I am very new to web development and know only HTML and CSS. What I need to learn to be able to create site like this and is it possible at all to do it on my own without hiring any programmers?
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Apr 20, 2011
I have two dropdown lists with the second one being dependent on the selection in the first.
Options in list 1: 1,3 or 4
List two should be enabled when 3 or 4 is selected in list 1.
So far so good, managed to get it to work with only one set of lists, but I actually have 18 of those sets in this form:
<select name="fw[$i]" id="fw[$i]">
<option value="1">FWH</option>
<option value="3">links</option>
<option value="4">rechts</option>
[Code]....
I'm not that adept in javascript programming, more like a trial and error guy, how has hit the wall with this problem.
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Oct 21, 2010
What I need to do is create a dynamic select list using several sets of arrays.Example: fav color, fav car and fav genre.The trick is I need to use three radio buttons to control what is seen in the list.So if a user click radio button 1, the list changes values to one of the arrays.And if they click radio 2, the list changes to the values to another array.This is a learning process. I will really appreciate if anyone can help me on this.I can build the arrays, what I do not know how to do is make the list dynamic so that it fetches data from the arrays when a radio button is clicked.
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Mar 7, 2011
I have 3 ASP list boxes. I would like to populate the second list box based on the selection in the first list box and based on the selection in the second list box, populate the third. I would like to do this using AJAX. How can I do it? Can someone please give me the code snippet as I am a complete noob when it comes to AJAX and I kinda am running outta time to finish implementing it. Additionally, should I use ASP boxes or HTML <select> tag?
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Mar 19, 2010
Below is the code I use to populate a textboxes (compaddress) when I select the compname from the dropdown. I would like to be able to populate other textboxes such as the compdescription, compmaincontact and others when I select the compname from the dropdown. I think that I need an array but I really would like some advice on how to do it as all of my attempts have failed so far
Code:
<script type="text/javascript">
function showname(what)
{
what.form.textfield.value=what.options[what.selectedIndex].title
}
window.onload=function() {
showname(document.form1.number)
}
[Code]...
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Mar 26, 2011
I have a search form that a user selects item from dynamic list hits the submit button and it returns each matchingresulton same page in an update form, i have 2 checkboxes in update form that updates the DB when 1 is checked, this all works fine until i check the checkbox the data updates ok but allremainingupdate forms are removed because the page refreshes.
So i need to update formstwith out page refreshing but i cant get it to work with multiple forms on same page.
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Feb 8, 2011
I want to populate the right text box with the result of the drop down multiplied by the left text box. I'm able to do this already but with only one set. I want to be able to have multiple rows.
Here is the code I currently am using for the single.
Code:
$(function() {
$('#DropDownList1').click(function() {
$("input#TextBox1").val(
(
[Code]....
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Apr 10, 2006
What i want to do is populate a dropdown with data brought from mysql. However there is are two radio buttons i have which i want to choose what data the dropdown i populated with. This is the code i have so far. I don't have no js yet as my skill is php and mysql, not javascript. Code:
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Oct 5, 2005
I am creating a site that has to do w/ pets. I want users to be able to select the type of pet they have from the first dropdown and then select from the second dropdown from choices dependant upon what they chose in the first dropdown.
So if they choose 'dog' as a pet type in the first drop down. I want the second drop down to display 'dog breeds'. If the choose 'cat' as a pet type I want the second drop down to display 'cat breeds'. This is what I have thus far.
My data table: Contains PetType(Column 1) and BreedType(Column 2)
My page form calls these two criteria Pet Type and Breed
I want to be able to insert this script into my form's HTML footer. Code:
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Feb 11, 2009
What I'm trying to do is auto populate the foreign key with help of dropdown box that contains names of clients so if i select a name from dropdown box a textfield above should populate with it's ID(primary key).
Code:
<td>Client ID : </td>
<td><input type="text" id="cl_id" name="cl_id" value="<?
$query = "SELECT * FROM client ";[code]......
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Jan 16, 2011
I have a product select page that is really slow to use because 6 dropdowns must be populated and the page reloads after selecting each box, to get the options for the next box.
I want to speed it up as follows:
1) User selects one of 50 products from a dropdown list.
2) Page reloads, and all the possible options for the remaining 5 dropdown boxes are now populated (ie. list options all stored client side)
3) User can freely input the remaining 5 dropdowns without the page reloading.
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Aug 16, 2010
i am writing a script that will update a dropdown list based on the selection of a previous list. the script is run by a PHP script, so instead of posting the PHP, i will post an example client-side script. the hierachy is: category, sub category, brand (but sometimes there exists no sub category and the PHP script queries and adds brands instead) everything works correctly, except for one major issue: you can not change the selection of the third (brand) box this could be an easy fix for some coders, but i am not experienced in javascript and could really use some help. here is an example script, sorry it is so long
[Code]...
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Jul 13, 2011
I have been struggling on a bit of code for a while now. I need to populate a second drop down list (Region) based upon the selection of the first (County).I have found a piece of code that works on its own and have adapted to suit my needs - see below. However, when I drop it into my main page the javascript is not working. It's because of the formObject but I just don't know enough to resolve this! Furthermore, I need the textboxes the user has already completed in the form to retain their value once the javascript kicks in as the completed form will submit to a database.This piece of code is working well . . . .
<?php
$link = mysql_connect('myhost', 'myusername', 'mypassword') or die('Could not connect: ' . mysql_error());
mysql_select_db('mydatabase') or die('Could not select database');[code]......
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Jan 5, 2012
I have quite a few calls on my page at different points to populate dropdowns using jSon responses from the server. It is all working fine now apart from one issue. The name of the field that sets the value and text of the new Option(s) being put into the dropdown.
[Code]...
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Jun 16, 2010
I am populating a number of Select boxes on the server-side with a large number of options. I'd like to get the response size down without taxing the client browser too much. What do you think is the most efficient way to approach this problem?
Here are some considerations: The option text/values do not change very often, but could potentially change in the future. The page that holds the select boxes should never be cached, there are other aspects of the page that need to remain fresh. Firebug with YSlow is saying that the primed cache size of the page is 300Kb with all the select dropdowns and options, if I remove the options, the primed cache size of the page is 80Kb. I am considering breaking out the text/value pairs for the select boxes into a separate file that is cache-able calling it "valueTextPairs.js" and referencing it with a query string and some sort of server-generated MD5 hash of the data, so that if any of the values change, the client's cached version will be replaced by the latest version. Like so:[URL]...
Provided I do this, I anticipate that the primed cache size of the page will be reduced down to 80Kb (which I like) -- however, before I take the plunge, I am curious what you all think the performance effect will be?
I know the number of bytes on the wire will be reduced, but will this put a lot of additional pressure on the client's browser because I'd need to traverse the name/value pairs and add the options to the select boxes dynamically on the client end? If it seems reasonable to do this, what jQuery approach would be the most efficient? $('#selectId').html(options) with options = one big string? Adding each child option to the select in a loop? Something else?
Some client end folks are using IE6 so I am trying to tax the browser as little as possible, while also reducing the size of each request, trying to find a happy medium..
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Feb 22, 2011
I've looked around and from what I can tell, the code seems right. Basically crating a JS array and passing PHP values to it to use in an onChange to fill a text field. The dropdown gets populated fine but the text field does not autopopulate onChange. I'm not too fluent with JS but have a good analytical mind and from what I can see, the logic seems right.
<?php
include('connectdb.php');
$CENTRE = $_SESSION['centreAFB'];
$qryFormList = mysql_query("SELECT * FROM tblLogin WHERE ACCT_TYPE = '2' AND loginCENTRE = '$CENTRE' ORDER BY loginNOM");
echo "<script type='text/javascript'> var formCourriel = new Array()";
while($resFormList = mysql_fetch_assoc($qryFormList))
[Code]....
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Jun 29, 2011
how to populate checkboxes based on the dropdown menu selection
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Apr 11, 2011
I want to populate a combobox with data pulled from a mysql db . The value of second combobox depends on what's been selected in first combobox. I assume pulling the data completely when loading the combobox and then filtering it locally to populate the second combobox based on the selection in first combobox will suit my needs so that i do not have to query server.What is the best way of doing it?
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