Disable/Enable Checkboxes Based On Dropdown Selection?
Jan 14, 2011
I have searched and found lots on enabling/disabling form inputs, but nothing that matches my needs.
I have a form with a dropdown with values 0-4. If value 0 is selected I want the checkboxes to be disabled. If value 1-4 is selected I want the checkboxes to be enabled.
Code:
<html>
<head><title>Disable with Dropdown Test</title>
<script>
function num_check(sel,cb) {
I have a simple form - I want to disable the text field if Choice 2 from the dropdown menu is selected. I have this working with the code below, but for some reason if I go back and select choice 1 after selecting choice 2 the text field remains disabled. I only want it to be disabled if choice 2 is selected.
I made a small photo application using javascript that displays random pictures like a slideshow. There is text that goes with each picture that is initially hidden but becomes visible when the user clicks on a button. I have the pictures grouped into separate .js files (about 10 per group) and the page selects images at random from all separate files as if they were one. what i need to do is to be able to disable or deactivate certain photo collections by checking/unchecking a box.
then there would need to be two checkboxes (preferably at the bottom of the page), one for each .js file. if box 1 is checked then the images selected are drawn only from slide1.js. if box 2 is selected then images are only drawn from slide2.js. if neither are checked then no images are drawn, and if both are checked then images are drawn from both .js files.
I have written the following script which enables/disables checkboxes on my page when a radio button is selected.[code] What I would like to do is create another function called checkval() like below, which will check the value of my radio button (id: email_alerts). If the value is equal to "on" then it will run enableCheckboxes().
Is there any way to enable a form element(s) based on the selection in a <select> drop-down? I'm trying to enable/disable a group of checkboxes depending on which option is chosen in the <select> above it.I know how to enable/disable something when a box is checked (or text is entered into it) but I have no clue how to handle the <select> option.
Would anyone care to post your favorite script for disabling the submit button on a form when there are input errors, and reenabling when all errors are resolved? I'd be curious what the different approaches are to this. I looked through my various SitePoint javascript books and surprisingly didn't find an answer to this scenario specifically.The behavior I'm trying to achieve (most efficiently) is having a form start out with the submit button enabled, but if there is a validation error, such as a required field being left blank on blur, the submit button is disabled. It's easy then to re-enable it when the user fills in that field, but harder to get the script to check and see if there are any other lingering errors before going ahead and enabling it.
My natural inclination would be to just keep a count of errors that increments and decrements when errors occur and are resolved. Then the script would check to see that the error count is 0 before re-enabling the submit button. It seemed easy, but I think I'm getting mixed up somewhere in conflicts of variable scope, and it's not turning out right.A google search rendered an example where someone was using a string variable to store errors, concatenating and replacing data to the string as errors were logged/resolved.
I want the div with the id of "option2show" to be hidden unless the user has selected option 2 in the dropdown box.
If the user has selected option 1 then nothing will happen, however iff option 2 has been selected then the option2 div will appeaar. I would like this to happen before any submit buttons are press, so i guess onblur of the dropdown box.
I am new to javascript stuff but am looking to develop a form which includes 2 drop down menus but I would like to grey out some options in the second one based on the selection in the first. Basically this is a simplification of what I have:
What I would like is that if south or east are selected for orientation then I can only select front left or front right but if north or west are selected then only rear left or rear right are available.
i am building a website form which I would like the user to select a product of interest. Some products are three tiered and some are two tiered.
1. Example of three tier (3 dropdowns required only):Scooters (dropdown 1)Three Wheel Scooters (dropdown 2) Delux 503S Bird Scooter (dropdown 3)
2. Example of two tier (2 dropdowns required only):Standing Bikes (dropdown 1)Children 300 Series (dropdown 2)
If the user wants to submit their interest for one of the products, I need to have at most 3 dropdown menus. So in Example 1, I would have 3 dropdowns in my form. Dropdown 1: Scooters Dropdown 2: Three Wheel Scooters Dropdown 3: Delux 503S Bird Scooter.In Example 2, I would only need to use the first 2 dropdown menus. (Obviously the first dropdown would contain 'Scooters' and 'Standing Bikes' in the menu list)I would like to alter the code so that the second and third dropdowns are hidden until a selection from the first drop down is made. Once for example, 'Standing Bikes' is selected from the first dropdown menu, the second dropdown menu appears and the third remains hidden due to the fact that it is not required. If I selected Scooters from the first dropdown menu, the second dropdown would appear listing all items associated with this and at this point the third dropdown menu is hidden. If i select 'Three Wheel Scooter' from the second dropdown the third dropdown menu now appears listing all Three wheel Scooters such as 'Delux 503S Bird Scooter'.
I have a page on which I have 2 dropdowns. Both are similar. I have a piece of code that whill make a textbox appear if we select "list Box" as the option in the drop down. But for some reason, the first dropdown works fine, but for the second dropdown, the textbox is always there on page load. The code that I am presenting can be copied as a HTML page and you will know what I am referring to.
<html> <script type="text/javascript"> function showfield(name){ if(name=='lstbox')document.getElementById('div1').style.display="block"; else document.getElementById('div1').style.display="none"; } function hidefield() { [Code]...
I have a form which has a dropdown menu on it. The last option on the menu "other". When "other is clicked, I would like a textarea to become visible, so that the user can enter the new information. Does anyone know how I might do this?
Here is the html for the form:
HTML Code: Union: <select name="union" id="union"> <option value="choose">Choose One</option> <option value="ibew">International Brotherhood of Electrical Workers</option> <option value="ibt">International Brotherhood of Teamsters</option>
I have a Javascript function that allows the display of a textbox upon selecting an option from a dropdown menu. In my case when a user selects listbox as the option, the text box appears. I want the same thing to happen when another option (checkbox) is selected. when I repeat the JAVAscript code, the first textbox(listbox's textbox) appears irrespective of which option(listbox, checkbox) I select. I want to be able to appear/disappear only the respective textbox. Here is my code.
<html> <script type="text/javascript" > function showfield(name){ if(name=='lstbox')document.getElementById('div1').style.display="block"; else document.getElementById('div1').style.display="none"; } function hidefield() { [Code]....
I have a page which has a dropdown box.On selection a value is sent to a php script (Ajax), based on the value a html table is created and sent back to the responseText.The table is outputted to the html page, I want the table to have sortable columns, so I have used jquery datatables for this, but it is not working.I have cut and pasted the exact table into the html and ran the page, and then sorting works.
I'm pretty bad with Javascript, but I need to hide or show a snippet of text (could be inside a div without problems) based on the selection of a dropdown menu (<select>). If they choose anything with the word "Series" on it, I need to show the snippet. If they choose anything without "Series" on it, then the snippet needs to disappear. I should mention the snippet is part of a form, just a checkbox but that shouldn't be a problem I don't think.
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>'); .....