Select2 is licensed under MIT. Select2 gives you a customizable select box with support for searching, tagging, remote data sets, infinite scrolling, and many other highly used options. Select2 comes with support for RTL environmentssearching with diacritics and over 40 languages built-in.
Using AJAX you can efficiently search large lists of items. The plugin system allows you to easily customize Select2 to work exactly how you want it to. Allow users to type in a new option and add it on the fly. Looking for the documentation for Select2 3. That can still be found here. Getting Started Installation Basic usage Builds and modules 2. Troubleshooting Getting Help Common problems 3. Appearance 5. Options 6. Data sources The Select2 data format Ajax remote data Arrays 7.
Dropdown 8. Selections 9. Dynamic option creation Placeholders Search Programmatic control Add, select, or clear items Retrieving selections Methods Events Internationalization Upgrading What's new in 4.
Docs maintained by Alexander Weissman. Hosted by NextGI. Documentation license: CC BY 4. Getting Started. In your language Select2 comes with support for RTL environmentssearching with diacritics and over 40 languages built-in.
You can use. When you make any external changes that need to be reflected in Select2 such as changing the valueyou should trigger this event. This is further complicated by server-side filtering and pagination - there is no guarantee when a particular item will actually be loaded into the Select2 control! The best way to deal with this, therefore, is to simply add the preselected item as a new option. For remotely sourced data, this will probably involve creating a new API endpoint in your server-side application that can retrieve individual items:.
Notice that we manually trigger the select2:select event and pass along the entire data object. This allows other handlers to access additional properties of the selected item. You may clear all current selections in a Select2 control by setting the value of the control to null :. Getting Started Installation Basic usage Builds and modules 2.
Troubleshooting Getting Help Common problems 3. Appearance 5. Options 6. Data sources The Select2 data format Ajax remote data Arrays 7. Dropdown 8. Selections 9. Dynamic option creation Placeholders Search Programmatic control Add, select, or clear items Retrieving selections Methods Events Internationalization GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Prevent catching the click and disallow opening of the select or triggering the selectopen when the clear indicator is pressed to clear the selection when allowClear is true.
Use case: When allowClear is true and one clicks the selection clear indicator -- the value gets cleared but it also triggers the dropdown to open again when it is not necessary.
I think this issue should be considered a bug, since when a user wants to clear the select, he does not immediately want to select another value. And if he does, he would simply click on the element anywhere but the clear button. I tried cancelling the opening event using e. Is it possible to restore the old behaviour, potentially as an option?
Known issue, tracking at Based on the commit ffedthere wasn't any major reason for it. I'm open to the idea of it, though it would have to be done in a way such that it didn't break backwards compatibility.
Could you please explain what you do exactly? Yes its similar to yours probably yours is better - and more of an hack - which you can check on my Yii2 Select2 widget demo pages - but I am also facing the args undefined message as you mentioned probably only when I have change events on the input and related to At other times I am getting an error cannot set property prevented of undefined in select2.
I modified the hack to the following code combining all the thoughts in this thread with some additions and it seems to work without errors if you can forgive the flicker of open and close of the dropdown - so still a dirty hack Another side effect of clear - - we probably need additional events.
I agree with others, this is odd default behaviour - it doesn't match the default behaviour of the standard multiselect HTML element on Windows Chrome, FF and standard Office and Windows UI tested or MAC, and in our focus group test of our new UI, it confused and frustrated users as they had to do an additional click to access options below the select2 element after they had cleared all the selected items from the multiselect. Further to this is is a change in behaviour from Select2 v3, so yet another incompatibility - with no evidence supported reason for the change :.
I would like to see the default behaviour changed to match v3, or at the very least a option for it. NovaFocus solution doesn't appear to work when the select is configured for multiselect.
Add, select, or clear items
Here's another hack for those that can't stand the quick flicker that shows up in kartik's solution full credit to him for his solution being a springboard to this solution :.
Maybe an option like "autoOpenOnClear" could solve the issue. Or people could trigger the opening theirselves with the unselecting event? SectorNine50 your solution works, but disables the normal opening of the dropdown for one click after unselecting from the dropdown list, so i came up with this, witch i think works better because it prevents the open event from firing in the first place:.
Obviously, replace " sel. Enjoy :. Hlsgs Odd, it doesn't have that behavior on my end Both of the unselecting "variables" should be unset immediately after deselecting an object. Does one remain set to true after deselecting on your end? SectorNine50 unfortunately, i don't know how to watch for variables that are not defined straight in js.
This produced exactly the same results as your vanilla solution, and after deselecting from the dropdown the opening of it gets blocked for a round. In the end i went back to my solution, as it doesn't rely on setting variable and, by hooking into the :unselect event to restore opening functionality it disregards wether the dropdown was actually opened or not.
And the timeout accounts for the opening event firing more than once or not. EDIT: Actually it seems that the timeout i added has nothing to do with the open event firing more that once as i fixed that as per 2acf9f3 and it seems the code doesnt work without it anyway.
I'm starting to despise my feeble understanding of js : Please can someone explain why this works:.Select2 is licensed under MIT. Select2 will trigger a few different events when different actions are taken using the component, allowing you to add custom hooks and perform actions.
You may also manually trigger these events on a Select2 control using. You can attach to them using the. When select2:select is triggered, data from the selection can be accessed via the params. Any additional data for the selection that was provided in the data source will be included in this object as well.
For example:. You can manually trigger events on a Select2 control using the jQuery trigger method. However, if you want to pass some data to any handlers for the event, you need to construct a new jQuery Event object and trigger on that:. It's common for other components to be listening to the change event, or for custom event handlers to be attached that may have side effects. To limit the scope to only notify Select2 of the change, use the.
Select2 has an internal event system that works independently of the DOM event system, allowing adapters to communicate with each other. This internal event system is only accessible from plugins and adapters that are connected to Select2 - not through the jQuery event system.
You can find more information on the public events triggered by individual adapters in the advanced chapter. Getting Started Installation Basic usage Builds and modules 2. Troubleshooting Getting Help Common problems 3. Appearance 5. Options 6. Data sources The Select2 data format Ajax remote data Arrays 7. Dropdown 8.Select2 is licensed under MIT. By default it supports all options and operations that are available in a standard select box, but with added flexibility.
Select2 will register itself as a jQuery function if you use any of the distribution builds, so you can call. The DOM cannot be safely manipulated until it is "ready". Select2 also supports multi-value select boxes.
Is it possible to clear the contents of a html select object using JQuery? I have a function that gets a list to populate the select and appends it to the select, so I need some way of clearing the previous data before appending. Consider the following HTML:. If you don't care about any child elements, e. Otherwise, if you only want option elements removed, use remove. Assuming a list like below - and assuming some of the options were selected In some function called based on some event, the following code would clear all selected options.
Here is a small jQuery plugin that among other things can empty an dropdown list.
For most of my select options, I start off with an option that simply says 'Please Select' or something similar and that option is always disabled. You may have select option values such as "Choose option". If you want to keep that value and clear the rest of the values you can first remove all the values and append "Choose Option".
Learn more. Asked 8 years, 11 months ago. Active 8 days ago. Viewed k times. Active Oldest Votes. So you can empty the old list and append the new list in one line of code? Instead use the other two. Developing Developing 4 4 silver badges 16 16 bronze badges. Tithira Tithira 77 2 2 silver badges 12 12 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
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How do I set the placeholder on value reset by select2. In my example If locations or grade select boxes are clicked and my select2 has a value than the value of select2 should reset and show the default placeholder.
This script is resetting the value but won't show the placeholder. Select2: The select2 "val" method has been deprecated and will be removed in later Select2 versions. Edit: December Comments suggest that the below is the updated way to do this:. According to Select2 Documentation. And you have the advantage of if you have multiple Select2 at the same form, all them will be reseted with this single command. For users loading remote data, this will reset the select2 to the placeholder without firing off ajax.
Works with v4. So, to reset the form some of you will have a reset button. Add the following code inside the script tag. Following the recommended way of doing it. I was also having this problem and it stems from val null. I solved it by catching the error and setting the placeholder directly along with a width.
Note: If you have more than one you will need to catch each one. What i want to achieve is: clear all options but don't touch the placeholder. This code works for me. I started getting some kind of lag after some three to four triggers. I suppose there's a memory leak. Its not within my code because if I do remove the this line, my app is lag free. Learn more. Reset select2 value and show placeholder Ask Question.
Asked 6 years, 8 months ago. Active 7 months ago. Viewed k times. Active Oldest Votes. AbdelMalek AbdelMalek 2, 2 2 gold badges 14 14 silver badges 12 12 bronze badges. This does not work for me.
The placeholder still does not show up. The above method is deprecated.