jQuery dropdown option:first selected - javascript

I am using some jQuery to populate various dropdowns. I was able to get the jquery to show current value as the first option.
However, I need it to not only show as the first option, but as the currently selected option so that the selection doesn't appear twice in the dropdown.
As shown in the images below, you see the current value is Target. But after clicking the dropdown button, Target is listed twice:
Here is what the current jQuery looks like:
$(function()
{
$eexist = $(this).attr('data-exist');
$('#eexist option:first').val($eexist).text($eexist);
}
Which goes into this modal form dropdown select:
<div id="editCustModal">
<form id="editCustForm" name="editCustForm">
<label for="eexist">Existing/Target</label>
<select class="form-control" id="eexist" name="eexist">
<option></option> // keeping this or not does nothing
</select>
</form>
</div>
The value and the text are the words Target and Existing.
To reiterate, if the current value is Target, then when you click on the dropdown, you should only see Target as the currently selected item AND only see it once.

If you want to select first option then below is the code:
$('select option:first-child').attr("selected", "selected");
But if you want to select the current value then below is the code:
$('#eexist option:first').val($eexist);
this should only work if $eexist exists as value in dropdown
Since you didn't provide much so it's hard to tell..At least provide a jsfiddle link when you ask a question

Do it this way...
$(document).ready(function(){
$("#myselect").change(function(){
var toR = $('<div>').append($('#myselect option:selected').clone()).html();
console.log(toR);
$("#myselect option:selected").remove();
$("#myselect").html(toR+$("#myselect").html());
});
});
Working Fiddle

Related

Add chosen after adding id by dynamically

I am showing option with chosen plugin and latter add option to it.
I am trying below
<select id='one'>
<option>a</option>
<option>b</option>
</select>
and calling chosen plugin
$('#one').chosen();
it working fine now i am remove chosen part and adding new option to select box
$('#one').append(' <option>g</option>');
$('#one').addClass('abc').attr('id', '');
$('#one_chosen').remove();
$('.abc').attr('id', 'myid');
$('#myid').chosen();
as you can see that i have added id by class and calling chosen() on it but this time its not working. And i can not keep id one in select box if there is no chosen
jsfiddle
You must clone the element in order to make it work:
$('#one').chosen();
$('#one').find('option:first').remove();
$myid = $('#one').clone().attr('id', 'myid').insertBefore('#one');
$("#one, #one_chosen").remove();
$myid.show().chosen();
Updated demo
i am not sure i understand your question. But you can refresh chosen with .trigger("chosen:updated"); i.e you can do something like
$('.select-chosen').chosen();
$('#one').addClass('abc').attr('id', '');
$('.abc').attr('id', 'myid');
$('.select-chosen').trigger("chosen:updated");
Update:
Ideally, if you want to fully change the select chosen, it is better to just hide and show new select chosen. In case, if you want to add or remove option from select and want to gain fully functionality of chosen you can do it easily with
// add custom option
$(".select-chosen").append('<option>Custom Option</option>');
// remove existing option
$(".select-chosen option[value='a']").remove();
Refer : http://jsfiddle.net/qubkhtsc/5/

jQuery Autopopulate Multiple Select uses text instead of value

I've got a multiple select like this configured to auto-populate:
<select id="multiple-select-box" class="selectivity-input" data-placeholder="Type to search condos" multiple>
<option id="Alabama Grove Terrace" value="Alabama Grove" >Alabama Grove Terrace</option>
<option id="Alden Pines" value="Alden Pines" >Alden</option>
</select>
Upon select I realized the script is submitting the visible Text for each option instead of the value="" for each option chosen.
I tried to change var t=$(this).text(); to var t=$(this).value(); thinking that would grab the value instead of the option text but had the same results. What am I missing?
<script>
$(document).ready(function() {
$("#bySub").submit(function(){
$(".selectivity-multiple-selected-item").each(function(){
var t=$(this).text();
//if()
$(".ml").append("<option selected='selected'>"+t+"</option>");
});
})
$('#multiple-select-box').selectivity();
});
</script>
Ok, so I went to check this selectivity plugin you're using and it converts your select into a series of divs as
<div class="selectivity-results-container">
<div class="selectivity-result-item highlight" data-item-id="Alabama Grove">Alabama Grove Terrace</div>
<div class="selectivity-result-item" data-item-id="Alden Pines">Alden</div>
</div>
you have to change your submit function to get the data-item-id property which corresponds to your original select value like
$("#bySub").submit(function(){
$(".selectivity-multiple-selected-item").each(function(){
var t=$(this).data("item-id");
$(".ml").append("<option selected='selected'>"+t+"</option>");
});
edit
fiddle example
In this line, you are appending options to the select, but you have set no value attribute:
$(".ml").append("<option selected='selected'>"+t+"</option>");
As stated in the comments, the "fetch value" method of a form element in jQuery is:
$(this).val()
You might be confusing it with the JavaScript property:
this.value
...which also works. Both return an array of strings if something is selected and set to "multiple"
To follow up on your comment, I don't see your markup for the selected element with class="ml" thus it's almost impossible to debug why your form isn't submitting the values without seeing the bigger picture (i.e. it may be outside the form element). You could try adding the value property to the select element however jQuery should be able to pick up selected options missing the value property by using the text value instead.

Dropdown on click of image

I want to open a dropdown on click of a image and also display a alert message that which of the dropdown option is being clicked .
My html code is :
<div class="account_notification">
<a href="#">
<div class="notify_notification">click</div><!-- notify_notification close --></a>
</div><!-- account_notification close -->
<select class="select1" size="5" style="display:none">
<option name="test" value="" class="first">Select</option>
<option name="test" value="" class="">NOTIFICATION1</option>
<option name="test" value="" class="">NOTIFICATION2</option>
</select>
What will be javascript code to do so ?
Though i found a jquery on inernet for dropdown display but that also without showing which option is selected and also i know very little about jquery .So i want code in javascript.Please help
Jquery i found is as follow :
$('.notify_notification').click(function() {
$('.select1').toggle();
});
I got the code from answers but the problem here is suppose before click if the bar is like this:
http://postimg.org/image/n04ggm7ux/
After clicking the image the bar become :
http://postimg.org/image/4h344hl7t/
How to get it down instead of being displayed along side ?
If you want to open the dropdown, not just to unhide the select element... Well, you're in trouble, because there is no generic or simple solution for that. Consider building your custom drop-down, trying another elements (like radio buttons) or using Shadow DOM.
To show the selected option, use something like this:
alert($('.select1 option:selected').text()); //show text of selected option
alert($('.select1').val()); //show selected value
You actual code is showing/hide the select; if you want to open the select programmatically is not possible even if you trigger a click the drop down list won't open like if the user clicked on it. An alternative is to use a custom select display plugin (like chosen).
To display the select value on option click use the change event:
$('.select1').change(function(){
alert($(this).val());
alert($(this).find('option:selected').text())
});
Demo: http://jsfiddle.net/IrvinDominin/YdJzP/
If you want only JavaScript solution.
You can toggle your combo with this:
function toggle(){
var elem = document.getElementById("myselect");
if(elem.style.display == "none")
elem.style.display = "block";
else
elem.style.display = "none";
};
And after adding onchange="selectHandler(this)" to your select on html, you can get selected value with:
function selectHandler(x) {
if(x.value!="")
alert("Selected: "+x.value);
toggle();
}
Here is a only example: JSFIDDLE

Jquery Tablesorter filter and external select box

I'm using tablesorter and the filter widget. I found this jsfiddle example that allows filtering entries with a select box (Filter by age). I want to add that select box to my example, but it doesn't work when simply adding
$(".selectAge").bind('change', function (e) {
var cols=[]
cols[3] = $(this).val()
$('table').trigger('search', [cols]);
});
to my example code. Would you please tell me how to get the select box to work?
My example code is a copy from the official example.
It was working, it just didn't look like it. The one problem with the select is that the "reset" option needed an empty string as a value:
<select class="selectAge tablesorter-filter" data-column="3">
<option class="reset" value="">Filter by age</option>
<option>>=25</option>
<option><=25</option>
</select>
Here is an updated demo (all I changed was the select and added the blue theme css).
Update: Just so you know, in the next update, you can just give that select a "search" class name like the other input, and be sure to include a data-column="#" attribute, and have it work automatically when you use bindSearch, so there would not be a need to add extra code:
$.tablesorter.filter.bindSearch( $('#mytable'), $('.search') );

Basic java script to get combobox

I am just starting out with some java script in an asp.net mvc web site.
I current have a form which I am working on.
The first field which the user is prompted with is a combobox / select (in html)
here is the code for it:
<select name="select">
#foreach (var item in Model.networks)
{
<option value="">#Html.DisplayFor(modelItem => item.name)</option>
}
</select>
Now my next field depends on the option which they chose from the combo box.
How can I populate the next field based on the option they chose in the combo box?
So when the user navigates to the page they will ave a combo box populated with all the options. Below that will be empty fields. When the user selects a option in the combo box I want it to then populate the empty fields with the corresponding data from the option which was chosen.
How do I go about doing this?
Please give the newby answer as in the method in which it will be done. I am assuming that I will be using java script for it?
Although I cannot understand your question in detail, I hope I can help you.
HTML
If you have a select element that looks like this:
<select id=dropdown>
<option value="1">test1</option>
<option value="2" selected="selected">test2</option>
<option value="3">test3</option>
</select>
Plain Javascript solution
Running this code:
var element = document.getElementByID('dropdown');
var current = e.options[e.selectedIndex].value;
Would make current be 2. If what you actually want is test2, then do this:
var e = document.getElementById('dropdown');
var strUser = e.options[e.selectedIndex].text;
Which would make current be test2
Put the onChange="getSelectedValue" attribute of the select element and then use the following javascript.
<script>
function getSelectedValue(sel)
{
txtToFill.Text(sel.options[sel.selectedIndex].text);
}
</SCRIPT>
If I understand your question correctly you want to react to a combo box value changing and display different content in your page.
If that is the case what you need to know is
how to handle the change event in the select (drop down)
populate empty fields
Here's how you can register and handle the change event in the dropdown:
$("select[name='select']").on("change", function(){
$('#input1').val("What you want in the input goes here");
});
Here's a fiddle that demonstrates this.

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