Develop Reference

form select option dynamic attr

I need to make Select name with option value, to select a specific value or index. the data where comes from db in a value "{{design}}".
I do get the value currectly, but I dont manage to set "selected" on the currect option value.
here is the code:
console.log("{{design}}");
$(document).ready(function () {
var options = $('select').children('option');
var size = $('select').children('option').length;
for (i=0;i<size;i++)
{
if ( options[i].innerHTML==="{{design}}")
{
options.selectedIndex=i;
}
}
});
the html is :
<select name="design" required id="design" >
<option value="1">flowers</option>
<option value="2">classic</option>
<option value="3">roses</option>
</select>
I need to make to currect {{design}} value, lets say it's 2, so it will be <option value="2" selected>classic</option>`
thanks!
SOLVED
Hi, found the solution to the issue, if anyone eles goes into trouble.
$(document).ready(function () {
var options = $('select').children('option');
var size = $('select').children('option').length;
for (i=0;i<size;i++)
{
if ( $('select').children('option')[i].value === "{{design}}")
{
$('select').children('option')[i].selected=true;
}
}
});
the currect way is to find the right option value and then-> [i].selected=true
goodluck

Try this
var selectedvalue=2; //option with value 2 should be selected
$("#design option[value=selectedvalue]").attr("selected","selected");
Hope this helps...

If I understood right, you are on the right path just taking a minor detour. Try this:
if ( options[i].innerHTML==="{{design}}")
{
options.attr('selected', 'selected');
}
The example of .each() usage:
$(document).ready(function(){
$('select option').each(function(i){
if( i.value === "{{design}}"){
$(this).attr('selected','selected');
}
});
});

try this:
$(document).ready(function(){
$('select option').each(function(i){
//if this option contains the word "{{design}}" Then this is selected
if( $(this).html().indexOf("{{design}}") != -1)
$(this).attr('selected',true);
});
});

jquery get select option value and then add parameter

I'm trying to add on to the value "&fullpage=true"
<select name="navMenu" onchange="go(this.options[this.selectedIndex].value)">
<option value="-">Select</option>
<option value="page.html&nyo=0" class="ccbnLnk">All</option>
<option value="page.html&nyo=0" class="ccbnLnk">IR</option>
<option value="page.html&nyo=0" class="ccbnLnk">Product</option>
</select>
I'm guessing it would be something like this?
$('select option').attr(val + "&fullpage=true");

You were close, but you needed to iterate over all the option elements and then make the change like:
$('select option').each(function () {
$(this).val($(this).val() + "&fullpage=true");
});
jsFiddle example

You can loop through each of the element using the each function
$('select option').each(function(){
$(this).attr('value', $(this).attr('value') + "&fullpage=true");
});

jQuery select option elements by value

I have a select element wrapped by a span element. I am not allowed to use the select id but I am allowed to use the span id.
I am trying to write a javascript/jquery function in which the input is a number i, which is one of the values of the select's options. The function will turn the relevant option to selected.
<span id="span_id">
<select id="h273yrjdfhgsfyiruwyiywer" multiple="multiple">
<option value="1">cleaning</option>
<option value="2">food-2</option>
<option value="3">toilet</option>
<option value="4">baby</option>
<option value="6">knick-knacks</option>
<option value="9">junk-2</option>
<option value="10">cosmetics</option>
</select>
</span>
I wrote something as follows (this does not completely work, which is why I am posting this question):
function select_option(i) {
options = $('#span_id').children('select').children('option');
//alert(options.length); //7
//alert(options[0]); //[object HTMLOptionElement]
//alert(options[0].val()); //not a jquery element
//alert(options[0].value); //1
//the following does not seem to work since the elements of options are DOM ones not jquery's
option = options.find("[value='" + i + "']");
//alert(option.attr("value")); //undefined
option.attr('selected', 'selected');
}
Thanks!

Here's the simplest solution with a clear selector:
function select_option(i) {
return $('span#span_id select option[value="' + i + '"]').html();
}

With jQuery > 1.6.1 should be better to use this syntax:
$('#span_id select option[value="' + some_value + '"]').prop('selected', true);

Just wrap your option in $(option) to make it act the way you want it to. You can also make the code shorter by doing
$('#span_id > select > option[value="input your i here"]').attr("selected", "selected")

options = $("#span_id>select>option[value='"+i+"']");
option = options.text();
alert(option);
here is the fiddle http://jsfiddle.net/hRFYF/

You can use .val() to select the value, like the following:
function select_option(i) {
$("#span_id select").val(i);
}
Here is a jsfiddle: https://jsfiddle.net/tweissin/uscq42xh/8/

To get the value just use this:
<select id ="ari_select" onchange = "getvalue()">
<option value = "1"></option>
<option value = "2"></option>
<option value = "3"></option>
<option value = "4"></option>
</select>
<script>
function getvalue()
{
alert($("#ari_select option:selected").val());
}
</script>
this will fetch the values

function select_option(index)
{
var optwewant;
for (opts in $('#span_id').children('select'))
{
if (opts.value() = index)
{
optwewant = opts;
break;
}
}
alert (optwewant);
}

You can change with simple javascript
document.querySelector('#h273yrjdfhgsfyiruwyiywer').value='4'
<span id="span_id">
<select id="h273yrjdfhgsfyiruwyiywer" multiple="multiple">
<option value="1">cleaning</option>
<option value="2">food-2</option>
<option value="3">toilet</option>
<option value="4">baby</option>
<option value="6">knick-knacks</option>
<option value="9">junk-2</option>
<option value="10">cosmetics</option>
</select>
</span>

$("#h273yrjdfhgsfyiruwyiywer").children('[value="' + i + '"]').prop("selected", true);

Selecting an option in a dropdown menu based on node value?

Is there a way to set the value of a dropdown list in jQuery (or Javascript) based on the node value?
<select name="ddlProperty">
<option value="1" selected="selected"></option>
<option value="2">Animal Kingdom</option>
<option value="3">Epcot</option>
<option value="4">Hollywood Studios</option>
<option value="5">Magic Kingdom</option>
<option value="6">Downtown Disney</option>
</select>
I'd need to set the option of Magic Kingdom, so something like:
$("#ddlLocation").val("Magic Kingdom")
So that Magic Kingdom would become the selected item, that doesn't work as expected. Any ideas?

If you can use the value (not text!), do that using .val():
$("#ddlProperty").val("5");
If you don't have that, use .filter(), .text() and .attr() to find and set the selected <option>, like this:
$("#ddlProperty option").filter(function() {
return $(this).text() === "Magic Kingdom"
}).attr('selected', true);

Something like:
var box = document.getElementById('box'),
options = box.options;
for(var i = 0; i < options.length; ++i){
if(options[i].text == val){
options[i].selected = true;
}
}

$("#ddlProperty > option").each(function(i, elem) {
if($(elem).text() == "Magic Kingdom") {
$('#ddlProperty').val(elem.value);
return false;
}
});
And next time please make a proper example where the element has an id and that ID matches the ID in your code. I've spent about 5 minutes checking for an error until I've noticed the ID being different...
http://jsbin.com/ikibi3/2

myselect="Magic Kingdom";
$("select[name='ddlProperty'] option").each(function() {
if($(this).text() == myselect) {
$(this).attr('selected', true);
} else {
$(this).attr('selected', false);
}
});

jQuery - setting the selected value of a select control via its text description

I have a select control, and in a javascript variable I have a text string.
Using jQuery I want to set the selected element of the select control to be the item with the text description I have (as opposed to the value, which I don't have).
I know setting it by value is pretty trivial. e.g.
$("#my-select").val(myVal);
But I'm a bit stumped on doing it via the text description. I guess there must be a way of getting the value out from the text description, but my brain is too Friday afternoon-ed to be able to work it out.

Select by description for jQuery v1.6+
var text1 = 'Two';
$("select option").filter(function() {
//may want to use $.trim in here
return $(this).text() == text1;
}).prop('selected', true);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select>
<option value="0">One</option>
<option value="1">Two</option>
</select>
jQuery versions below 1.6 and greater than or equal to 1.4
var text1 = 'Two';
$("select option").filter(function() {
//may want to use $.trim in here
return $(this).text() == text1;
}).attr('selected', true);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
<select>
<option value="0">One</option>
<option value="1">Two</option>
</select>
Note that while this approach will work in versions that are above 1.6 but less than 1.9, it has been deprecated since 1.6. It will not work in jQuery 1.9+.
Previous versions
val() should handle both cases.
$('select').val('1'); // selects "Two"
$('select').val('Two'); // also selects "Two"
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>
<select>
<option value="0">One</option>
<option value="1">Two</option>
</select>

I haven't tested this, but this might work for you.
$("select#my-select option")
.each(function() { this.selected = (this.text == myVal); });

Try this...to select the option with text myText
$("#my-Select option[text=" + myText +"]").prop("selected", true);

I do it on this way (jQuery 1.9.1)
$("#my-select").val("Dutch").change();
Note: don't forget the change(), I had to search to long because of that :)

$("#myselect option:contains('YourTextHere')").val();
will return the value of the first option containing your text description. Tested this and works.

To avoid all jQuery version complications, I honestly recommend using one of these really simple javascript functions...
function setSelectByValue(eID,val)
{ //Loop through sequentially//
var ele=document.getElementById(eID);
for(var ii=0; ii<ele.length; ii++)
if(ele.options[ii].value==val) { //Found!
ele.options[ii].selected=true;
return true;
}
return false;
}
function setSelectByText(eID,text)
{ //Loop through sequentially//
var ele=document.getElementById(eID);
for(var ii=0; ii<ele.length; ii++)
if(ele.options[ii].text==text) { //Found!
ele.options[ii].selected=true;
return true;
}
return false;
}

This line worked:
$("#myDropDown option:contains(myText)").attr('selected', true);

I know this is an old post, but I couldn't get it to select by text using jQuery 1.10.3 and the solutions above.
I ended up using the following code (variation of spoulson's solution):
var textToSelect = "Hello World";
$("#myDropDown option").each(function (a, b) {
if ($(this).html() == textToSelect ) $(this).attr("selected", "selected");
});
Hope it helps someone.

$("#Test").find("option:contains('two')").each(function(){
if( $(this).text() == 'two' ) {
$(this).attr("selected","selected");
}
});
The if statement does a exact match with "two" and "two three" will not be matched

Easiest way with 1.7+ is:
$("#myDropDown option:text=" + myText +"").attr("selected", "selected");
1.9+
$("#myDropDown option:text=" + myText +"").prop("selected", "selected");
Tested and works.

Here is very simple way. plz use it
$("#free").val("y").change();

take a look at the jquery selectedbox plugin
selectOptions(value[, clear]):
Select options by value, using a string as the parameter $("#myselect2").selectOptions("Value 1");, or a regular expression $("#myselect2").selectOptions(/^val/i);.
You can also clear already selected options: $("#myselect2").selectOptions("Value 2", true);

Just on a side note. My selected value was not being set. And i had search all over the net. Actually i had to select a value after a call back from a web service, because i was getting data from it.
$("#SelectMonth option[value=" + DataFromWebService + "]").attr('selected', 'selected');
$("#SelectMonth").selectmenu('refresh', true);
So the refresh of the selector was was the only thing that i was missing.

I found that by using attr you would end up with multiple options selected when you didn't want to - solution is to use prop:
$("#myDropDown option:text=" + myText +"").prop("selected", "selected");

I had a problem with the examples above, and the problem was caused by the fact that my select box values are prefilled with fixed length strings of 6 characters, but the parameter being passed in wasn't fixed length.
I have an rpad function which will right pad a string, to the length specified, and with the specified character. So, after padding the parameter it works.
$('#wsWorkCenter').val(rpad(wsWorkCenter, 6, ' '));
function rpad(pStr, pLen, pPadStr) {
if (pPadStr == '') {pPadStr == ' '};
while (pStr.length < pLen)
pStr = pStr + pPadStr;
return pStr;
}

$('#theYear').on('change', function () {
FY = $(this).find('option:selected').text();
$('#theFolders').each(function () {
$('option:not(:contains(' + FY + '))', this).hide();
});
$('#theFolders').val(0);
});
$('#theYear').on('mousedown', function () {
$('#theFolders option').show().find('option:contains("Select")', this).attr('selected', 'selected');
});

Very fiddly and nothing else seemed to work
$('select[name$="dropdown"]').children().text("Mr").prop("selected", true);
worked for me.

Try
[...mySelect.options].forEach(o=> o.selected = o.text == 'Text C' )
[...mySelect.options].forEach(o=> o.selected = o.text == 'Text C' );
<select id="mySelect">
<option value="A">Text A</option>
<option value="B">Text B</option>
<option value="C">Text C</option>
</select>

This accepted answer does not seem correct, while .val('newValue') is correct for the function, trying to retrieve a select by its name does not work for me, I had to use the id and classname to get my element

Heres an easy option. Just set your list option then set its text as selected value:
$("#ddlScheduleFrequency option").selected(text("Select One..."));

If you are trying to bind select with ID then the following code worked for me.
<select name="0product_id[]" class="groupSelect" id="groupsel_0" onchange="productbuilder.update(this.value,0);">
<option value="0" class="notag" id="id0_0">--Select--</option>
<option class="notag" value="338" id="id0_338" >Dual Promoter Puromycin Expression Plasmid - pSF-CMV-PGK-Puro > £114.00</option>
<option class="notag" value="282" id="id0_282" >EMCV IRES Puromycin Expression Plasmid - pSF-CMV-EMCV-Puro > £114.00</option>
<option class="notag" value="265" id="id0_265" >FMDV IRES Puromycin Expression Plasmid - pSF-CMV-FMDV-Puro > £114.00</option>
<option class="notag" value="101" id="id0_101" >Puromycin Selection Plasmid - pSF-CMV-Ub-Puro AscI > £114.00</option>
<option class="notag" value="105" id="id0_105" >Puromycin Selection SV40 Ori Plasmid - pSF-CMV-Ub-Puro-SV40 Ori SbfI > £114.00</option></select>
AND THIS IS TEH JS CODE
$( document ).ready(function() {
var text = "EMCV IRES Puromycin Expression Plasmid - pSF-CMV-EMCV-Puro > £114.00";
alert(text);
$("#groupsel_0 option").filter(function() {
//may want to use $.trim in here
return $(this).text() == text;
}).prop('selected', true);
});

Get the children of the select box; loop through them; when you have found the one you want, set it as the selected option; return false to stop looping.