Multi-select dropdown menu - javascript

I am working on creating a website using node.js and express. I want to add a multi-select dropdown box. I have a Javascript object which contains a variety of properties and would like to populate the dropdown box with all the property values. I would also like to be able to add new options to the dropdown and have them visible without having to refresh the page. Is there someway to accomplish this? Perhaps using JQuery? I would appreciate if someone could provide an example.
I've tried this example, but I would like to have a multi select checkbox for the dropdown. The example requires the user to press ctrl while clicking to select multiple options.
Thanks!

$("#select_id").append("<option value='value'>name</option>");

Related

How to show multiple value in jQuery autocomplete?

I am trying to design a multi-column select/search box as the one shown below.
I thought about using jQuery-UI Autocomplete widget. I will make the list appear in focus so the user can select directly from the list or start typing in the search box to filter the data shown.
I know I can feed the Autocomplete an array of objects as the source and decide a label to be shown as the selected item when the user selects a row.
What I want is to show more than two columns on the list. Any idea how to accomplish that?
thanks,
Use autocomplete renderItem to customize your search results. For multiple column view, use html code in rendering to render table like view. And then use this library to render html in autocomplete UI.
I ended up using typeahead.js from twitter.
Paired with the bloodhound engine it gives the ability to specify costume templates for the list.

Deselecting select option in Select2 jquery plugin

I am using the select2 jquery plugin for select dropdown feature in web site.
Every select box in not required to be selected for the form submission .
I want user to be able to deselect the selected option if he wants to. Is there any way I can achieve this using Select2 Plugin. Any Help would be appreciated. Thank You.
You can put a blank option(option tag with blank value) in the select box for where you want the user to be able to deselect the value. In not sure what this has to do with select2.
If this doesn't solve you problem then let me know what options are you using to initialize select2 plugin or maybe elaborate more on the question.

dojo filteringSelect - allow entry of list items only

Is there a way to force filteringselect to only allow the user to type items that appear in the drop list. I know that it will invalidate anything that is not in the list, but I would just rather it not allow invalid entries to show.
Really, what I would like to see is behaviour that matches the HTML SELECT control. Dojo doesnt seem to provide this with any of its controls.
Im not sure if I read you okay but this is how it things go:
If you type what is in the drop list of the FilteringSelect widget
then there will be no validation error.
If you want to match the HTML Select dropdown, then use
dijit.form.Select.
If you want to Filtering Select behaviour but want also be able to type in values that are not in the drop list, then use the
dijit.form.ComboBox widget.

Google+ style autocomplete + dropdown jQuery plugin

I am looking for a jQuery plugin that behaves like the Google+ autocomplete + dropdown. In G+, I can enter a person's name and it'll look in my circles and show me a list of matches, or I can click the dropdown arrow at the end of the input box to get a list of all possible names that I can select from. I was able to find plugins that do the autocomplete, but nothing that mixes that with a dropdown functionality to show you all possible names. Any ideas?
You can also try the chosen component.
http://harvesthq.github.com/chosen/
It's a very nice piece of UI
Try jQueryUI Autocomplete: http://jqueryui.com/demos/autocomplete/

Auto populate combobox

IN my case i want to implement multi select auto complete combobox using html,javascript.
Is there any body who knows how to implement it.
Which will be similar to text field shown in stackoverflow while adding multipal tags to any question.
If you are talking about multiple drop down boxes that are linked, so that the selection in the first drop down menu determines the possibilities in the next, then the ASP.NET Toolkit has a nice cascading drop down sample. This will only, of course, come in handy if you are programming in ASP.NET. I would not recommend trying to reverse engineer the solution.
What do you mean by auto populate?
If you want to populate the drop down box dynamically you can just use a normal HTML Select tag and use Ajax to fetch the list of values to be shown in the drop down

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