I've got a select list like this:
<select id="selectlist" name="selectproduct" >
<option value=""> --- Select product --- </option>
<option value="1">Product 1</option>
<option value="2">Product 2</option>
<option value="3">Product 3</option>
<option value="4">Product 4</option>
</select>
Unfortunately I can't edit it.
Is there any method which let me hide the "Product 4" option by default?
I'm trying with CSS, but it doesn't work with IE.
To hide it, wrap it with a span tag.
$( "#selectlist option[value=4]" ).wrap( "<span>" );
To show it, unwrap the span tag if it has one.
if ( $( "#selectlist option[value=4]" ).parent().is( "span" ) ){
$( "#selectlist option[value=4]" ).unwrap();
}
using css to hide options is not supported in IE, so you need to update the options list itself.
Try something like
$('#selectlist option[value=4]').remove();
Demo: Fiddle
or if you want to enable it later
var sel = $('#selectlist');
var opts = sel.find('option');
$(':checkbox').click(function(){
sel.empty().append(this.checked ? opts : opts.filter('[value!=4]'));
}).click()
Demo: Fiddle
You can hide option using following line include in scripting.
$("#selectlist option[value='4']").hide();
And if you want to again show this option use following line.
$("#selectlist option[value='4']").show();
To save your time, please read the following answer.
OK, I searched for a few hours and I noticed that there is NO WORKING WAY to "hide" (what I mean is make the option temporally disappeared from the drop-down list) for all browsers, such as set the visibility to be hidden or style="display: none".
My final approach is:
1. Create an array to store all the options for the dropdown list.
2. Use a method to dynamically update the drop-down list according what you want to be shown.
That's it, if you want to use a drop down list without using any library
You can "hide" the option by moving it to a hidden select element or cached document fragment, then move it back when you want to show it:
var selectTool = (function() {
var frag = document.createDocumentFragment();
return {
hideOpt: function (selectId, optIndex) {
var sel = document.getElementById(selectId);
var opt = sel && sel[optIndex];
console.log(opt);
if (opt) {
frag.appendChild(opt);
}
},
showOpt: function (selectId) {
var sel = document.getElementById(selectId);
var opt = frag.firstChild;
if (sel && opt) {
sel.appendChild(opt);
}
}
}
}());
Then you can hide the 4th option like:
<input type="button" value="Hide option" onclick="
selectTool.hideOpt('selectlist',4);
">
and show it again using:
<input type="button" value="Show option" onclick="
selectTool.showOpt('selectlist');
">
All play code of course, but you should get some ideas. If you want to store many options, you'll need a way of referencing them so maybe store them in an object with some form of referencing scheme.
Try to disable that option with disabled attribute.
<select id="selectlist" name="selectproduct" >
<option value=""> --- Select product --- </option>
<option value="1">Product 1</option>
<option value="2">Product 2</option>
<option value="3">Product 3</option>
<option value="4" disabled="disabled">Product 4</option>
</select>
Check demo
see this link
http://jsfiddle.net/DKKMN/
<select id="selectlist" name="selectproduct" >
<option value=""> --- Select product --- </option>
<option value="1">Product 1</option>
<option value="2">Product 2</option>
<option value="3">Product 3</option>
<option value="4" id="i">Product 4</option>
</select>
#i{display:none;}
create an id and in style make it invisble
I suppose you are using JQuery as well.
$("#selectlist option[value='option4']").remove();
to append the child below the list of option using java script.
`var option = document.createElement("option");
option.text = "All Users";
option.value = "all_user";
var select = document.getElementById("log_user_type");
select.appendChild(option);`
if you want to remove some option from select list you can use this code:
<script type="text/javascript">
$(window).bind("load", function() {
$('#select_list_id option[value="AB"],option[value="SK"]').remove();
});
</script>
<option value="4" style="display:none">Product 4</option>
hides the 4th option by default.
Related
I'm not familiar with javascript and jQuery and I'm asking you.
I would like the code of a product to be selected, once I have selected it from the select dropdown, I click the button and it should add the value in an input box text, that I have created, so that I can also accumulate more codes of more products.
Keep in mind that once the button is clicked, the same value is no longer added indefinitely but that it is possible to choose another code and add it next to the one already present in the input text.
I don't know if it is more practical to use the <input type = "submit"> tag instead of the button tag to send or in this case transfer the selected text from the select to a text form.
You would save my life if you could please complete this action for me with javascript or jQuery :)
<select class="select" id="select-code">
<option value="">Select a code</option>
<option value="value1">Code 1</option>
<option value="value2">Code 2</option>
<option value="value3">Code 3</option>
<option value="value4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input name="my-quote" type="text" placeholder="code1,code2...">
First of all, it seems that you are complete beginner. so you should learn DOM api to learn how to manipulate the window.
Anyway here is the code to do so which you want;
document.getElementById('code-btn').onclick = () => {
let e = document.getElementById('select-code');
document.getElementById('input').value = e.options[e.selectedIndex].text;
}
<select class="select" id="select-code">
<option value="">Select a code</option>
<option value="value1">Code 1</option>
<option value="value2">Code 2</option>
<option value="value3">Code 3</option>
<option value="value4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input id='input' name="my-quote" type="text" placeholder="code1,code2...">
document.getElementById('code-btn') gets the element with id 'code-btn'. As that is a button, we can use onclick property which will will take a function and that function will be called when it is clicked.
Inside that function, i am simply getting the input field and setting its value to the text of the selected option from dropdown.
I think the code here is self-documented.
This isn't a direct answer to your question, but an alternative solution. If possible for your situation, I would consider using <select multiple>: the select tag with the "multiple" attribute. It's a native HTML feature that allows the user to select multiple options from the list. I don't know how you're submitting the form data, but if using a <form> tag then the form's data will include which values have been selected.
Tutorial about select multiple
<label for="select-code">Select a code</label>
<select class="select" id="select-code" multiple>
<option value="value1">Code 1</option>
<option value="value2">Code 2</option>
<option value="value3">Code 3</option>
<option value="value4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input id='input' name="my-quote" type="text" placeholder="code1,code2...">
This is actually very simple and might be used as beginers excercise, so I'm gonna give you a brief walkthrough of how I would solve it:
register button onClick event
read selected value
add it to the placeholder attribute
so something like this (not tested at all)
//button click event
$("#code-btn").click(function (event) {
//in element #select-code
var textToAdd = $('#select-code')
//find element with pseudo selector :selected
.find(":selected")
//get its inner text
.text();
//check if input already contains the text here, if not
if (!$("input").attr("placeholder").includes(textToAdd)) {
//into input element
$("input")
//into attribute placehoder
.attr("placeholder",
//insert original text //insert colon //insert new text
$("input").attr("placeholder") + ", " + textToAdd)
}
});
function myFunction() {
var newText = document.getElementById('select-code').value
var input = document.getElementById('my-quote')
if (input.value == '') input.value = newText
else input.value = input.value + ', ' + newText
}
<select class="select" id="select-code" onchange='myFunction()'>
<option value="">Select a code</option>
<option value="Code 1">Code 1</option>
<option value="Code 2">Code 2</option>
<option value="Code 3">Code 3</option>
<option value="Code 4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input id="my-quote" type="text" placeholder="code1,code2...">
I have a drop-down box in HTML showing three options. I am also using javaScript and want to use the getElementById tool to connect the two. However, I only have one ID for the drop-down box. How does javascript recognize that I have three different options?
There's actually a demo on w3schools.com showing exactly what you're asking. To get the number of options, you could do something like
document.getElementById("mySelect").options.length
Here is an example of how to retrieve the value of a dropdown: https://jsfiddle.net/ykcwgnm8/
You use getElementBy* functions to get the element, however value attribute denotes which item is currently selected.
HTML:
<select id="dropdown">
<option value="1">First option</option>
<option value="2">Second option</option>
<option value="3">Third option</option>
</select>
JS:
function onChangeHandler(e)
{
alert("you have selected item with value "+this.value);
}
document.getElementById("dropdown").addEventListener("change", onChangeHandler);
You can listen for change like this
var list = document.getElementById("mySelect")
list.addEventListener('change', function(e){
console.log(e.target.selectedIndex)
console.log(e.target.options[e.target.selectedIndex].text)
})
<select id="mySelect">
<option>Apple</option>
<option>Orange</option>
<option>Pineapple</option>
<option>Banana</option>
</select>
You can do something like this, here is an example:-
html
<select id="selectBox">
<option value="1">option 1</option>
<option value="2" selected="selected">option 2</option>
<option value="3">option 3</option>
</select>
js
var e = document.getElementById("selectBox");
var selectedValue = e.options[e.selectedIndex].value;
// this will give selectedValue as 2
Hope you find this useful!!
Im new to this so apologies if my question is not presented as it should be.
Basically, my aim is with jQuery is to make it so that when the field called 'Apple' is selected from the first dropdown box, the second dropdown box will only allow the field 'Firm' to be selected and the other two be disabled. However if any of the other fruits other than 'Apple' is selected from the first dropdown box then all of the options in the second dropdown box (texture dropdown) will be available to be chosen.
I have looked all over the internet for jQuery code to help me with this issue but as I am new to jQuery I have difficulty finding the solution I need.
Here is my HTML code:
<div class="ingredients_div">
<select name="ingredients_form" id="ingredients_form_1">
<option value="Apple" selected="">Apple</option>
<option value="Orange">Orange</option>
<option value="Lemon">Lemon</option>
<option value="Mango">Mango</option>
</select>
</div>
<div class="texture_div">
<select name="texture_form" id="texture_form_1">
<option value="Firm" selected="">Firm</option>
<option value="Soft">Soft</option>
<option value="Blended">Blended</option>
</select>
</div>
Many thanks
please check this code , i think it works for you.
$("#select1").change(function() {
if ($(this).data('options') == undefined) {
/*Taking an array of all options-2 and kind of embedding it on the select1*/
$(this).data('options', $('#select2 option').clone());
}
var id = $(this).val();
var options = $(this).data('options').filter('[value=' + id + ']');
$('#select2').html(options);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<select name="select1" id="select1">
<option value="1">Apple</option>
<option value="2">Orange</option>
<option value="3">Lemon</option>
</select>
<select name="select2" id="select2">
<option value="1">Firm</option>
<option value="2">Soft</option>
<option value="3">Blended</option>
</select>
To achieve what you mentioned, you need to use jQuery's event binding on the first select box. As soon as the value is changed, you need to write logic to enable/disable options in the second select box as per the value changed in the first box.
Here is how you can achieve it.
$("#ingredients_form_1").change(function() {
if ($(this).val() === "Apple") {
$("#texture_form_1 option").prop("disabled", true);
$("#texture_form_1 option[value='Firm']").prop("disabled", false);
} else {
$("#texture_form_1 option").prop("disabled", false);
}
});
Please go through jQuery's documentation to know more about selectors, event binding, and most importantly, in the next post, include what you've achieved till then.
I have a select tag where it contains some values, as shown below:
<select id="menu" SIZE=6 onChange="go()">
<option value="">Select city</option>
<option value="delhi" >delhi</option>
<option value="kolkata" >kolkata</option>
<option value="mumbai" >mumbai</option>
</select>
Now i am using below script for this, where it get the selected value from the drop down,
<script>
function go(){
var sel = document.getElementById('menu');
var sv = sel.options[sel.selectedIndex].value;
// here i need to make a specific link using this selected drop down value
}
</script>
I just need to know how can i make use of this selected value and go to specific link like
window.location.href='getCityDetails.jsp?c=sv'; // this is not working properly
Can anyone suggest me best solution for this.
<script>
function go(){
var sel = document.getElementById('menu');
var sv = sel.options[sel.selectedIndex].value;
window.location.href='getCityDetails.jsp?c=' + sv;
}
</script>
Hope it helps you
HTML :
<select id="menu" SIZE=6 onChange="go(this.value)">
<option value="">Select city</option>
<option value="delhi" >delhi</option>
<option value="kolkata" >kolkata</option>
<option value="mumbai" >mumbai</option>
</select>
Javascript :
function go(desination){
if (destination != ''){
window.location.href='getCityDetails.jsp?c=' + desination;
}
}
you need to concatenate the string properly. try this:
window.location.href='getCityDetails.jsp?c=' + sv;
-- You can use--
var TaskType = document.form1.SelTaskType.value;
-- TaskType will display selected option from below
<select id="SelTaskType" name="SelTaskType" >
<option selected>-- select --</option>
<option>B</option>
<option>C</option>
<option>D</option>
</select>
This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
jQuery / Programmatically Select an Option in Select Box
I was wondering, is it possible to select an option from a selectbox/combobox directly from jQuery. For example I want to select the option with the value 5 in a select with values from 1 to 10.
The only solution I can think of is to remove all options and recreate them with the right selected value, but that's a bit unefficient.
Just treat the select box as you would any other input element:
$("#MySelectBox").val("5");
You can do this by adding the selected attribute in <option> tag.
$(document).ready(function () {
$('#btn2').click(function(){
$('#sel1 option[value=2]').attr('selected','selected');
});
$('#btn3').click(function(){
$('#sel1 option[value=3]').attr('selected','selected');
});
$('#btn5').click(function(){
$('#sel1 option[value=5]').attr('selected','selected');
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.3/jquery.min.js"></script>
<select id="sel1">
<option value='1'>Option 1</option>
<option value='2'>Option 2</option>
<option value='3'>Option 3</option>
<option value='4'>Option 4</option>
<option value='5'>Option 5</option>
<option value='6'>Option 6</option>
<option value='7'>Option 7</option>
<option value='8'>Option 8</option>
<option value='9'>Option 9</option>
</select>
<input id="btn2" type=button value='Select 2' />
<input id="btn3" type=button value='Select 3' />
<input id="btn5" type=button value='Select 5' />
Of course you can
Just use this code to select option 5:
$("#ComboBox").val(5);
example
All you have to do is go around setting the attribute selected to true or selected.
var arrayOfOptions = $('#mySelect option') //will return an array of options in the order they are found
Just iterate over them, something like:
for(var i=0; i<arrayOfOptions.length; i++) {
var opt = arrayOfOptions[i];
//feel free to check the index of i here if you want to set
//a particular index to selected or a range.
//similarly the range can be passed in as a function parameter.
$(opt).attr('selected','selected');
}
If I understand you correctly, you want to select the option with value=5 and mark it selected. If so, this should be it:
$("#selectBox[value='5']").attr('selected', 'selected');
This should also work:
$("#selectBox").attr('value', 5).attr('selected', 'selected');