Chosen – A Sleek jQuery plug-in for auto-search, auto-suggestions, multi-select within drop down lists for desktop browsers

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Chosen – A Sleek jQuery plug-in for auto-search, auto-suggestions, multi-select within drop down lists for desktop browsers #Chosen

Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.

One of the best plug-ins available for drop down lists with searching facility.

Chosen is a library for making long, unwieldy select boxes more user friendly.

  • jQuery support: 1.4+
  • Prototype support: 1.7+

For documentation, usage, and examples, see: http://harvesthq.github.io/chosen/

For downloads, see: https://github.com/harvesthq/chosen/releases/

Brower Installation

Chosen does not currently support command-line bower install chosen installation. This is because the repo does not contain the compiled sources, and bower does not currently support adding a post-install/build step.

However, you can specify that you’d like to use the release ZIP, which includes the compiled and minified sources.

Either install from the command line with

$ bower install https://github.com/harvesthq/chosen/releases/download/v1.3.0/chosen_v1.3.0.zip

or add Chosen to your own project’s bower.json file, like:

{
  "name": "my-project",
  "version": "1.0.0",
  "dependencies": {
    "jquery": "1.11.0",
    "chosen": "https://github.com/harvesthq/chosen/releases/download/v1.3.0/chosen_v1.3.0.zip"
  }
}

Source: https://github.com/harvesthq/chosen

DEMO: http://harvesthq.github.io/chosen/

The following options are available to pass into Chosen on instantiation.

Example:

  $(".my_select_box").chosen({
    disable_search_threshold: 10,
    no_results_text: "Oops, nothing found!",
    width: "95%"
  });
Option Default Description
allow_single_deselect false When set to true on a single select, Chosen adds a UI element which selects the first element (if it is blank).
disable_search false When set to true, Chosen will not display the search field (single selects only).
disable_search_threshold 0 Hide the search input on single selects if there are fewer than (n) options.
enable_split_word_search true By default, searching will match on any word within an option tag. Set this option to false if you want to only match on the entire text of an option tag.
inherit_select_classes false When set to true, Chosen will grab any classes on the original select field and add them to Chosen’s container div.
max_selected_options Infinity Limits how many options the user can select. When the limit is reached, the chosen:maxselectedevent is triggered.
no_results_text “No results match” The text to be displayed when no matching results are found. The current search is shown at the end of the text (e.g., No results match “Bad Search”).
placeholder_text_multiple “Select Some Options” The text to be displayed as a placeholder when no options are selected for a multiple select.
placeholder_text_single “Select an Option” The text to be displayed as a placeholder when no options are selected for a single select.
search_contains false By default, Chosen’s search matches starting at the beginning of a word. Setting this option totrue allows matches starting from anywhere within a word. This is especially useful for options that include a lot of special characters or phrases in ()s and []s.
single_backstroke_delete true By default, pressing delete/backspace on multiple selects will remove a selected choice. When false, pressing delete/backspace will highlight the last choice, and a second press deselects it.
width Original select width. The width of the Chosen select box. By default, Chosen attempts to match the width of the select box you are replacing. If your select is hidden when Chosen is instantiated, you must specify a width or the select will show up with a width of 0.
display_disabled_options true By default, Chosen includes disabled options in search results with a special styling. Setting this option to false will hide disabled results and exclude them from searches.
display_selected_options true By default, Chosen includes selected options in search results with a special styling. Setting this option to false will hide selected results and exclude them from searches.

Note: this is for multiple selects only. In single selects, the selected result will always be displayed.

Attributes

Certain attributes placed on the select tag or its options can be used to configure Chosen.

Example:

  <select class="my_select_box" data-placeholder="Select Your Options">
    <option value="1">Option 1</option>
    <option value="2" selected>Option 2</option>
    <option value="3" disabled>Option 3</option>
  </select>
Attribute Description
data-placeholder The text to be displayed as a placeholder when no options are selected for a select. Defaults to “Select an Option” for single selects or “Select Some Options” for multiple selects.

Note:This attribute overrides anything set in the placeholder_text_multiple orplaceholder_text_single options.
multiple The attribute multiple on your select box dictates whether Chosen will render a multiple or single select.
selected, disabled Chosen automatically highlights selected options and disables disabled options.

Classes

Classes placed on the select tag can be used to configure Chosen.

Example:

  <select class="my_select_box chosen-rtl">
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
  </select>
Classname Description
chosen-rtl Chosen supports right-to-left text in select boxes. Add the class chosen-rtl to your select tag to support right-to-left text options.

Note: The chosen-rtl class will pass through to the Chosen select even when theinherit_select_classes option is set to false.

Triggered Events

Chosen triggers a number of standard and custom events on the original select field.

Example:

  $('.my_select_box').on('change', function(evt, params) {
    do_something(evt, params);
  });
Event Description
change Chosen triggers the standard DOM event whenever a selection is made (it also sends a selected or deselected parameter that tells you which option was changed).

Note: in order to use change in the Prototype version, you have to include the Event.simulate class. The selected and deselected parameters are not available for Prototype.
chosen:ready Triggered after Chosen has been fully instantiated.
chosen:maxselected Triggered if max_selected_options is set and that total is broken.
chosen:showing_dropdown Triggered when Chosen’s dropdown is opened.
chosen:hiding_dropdown Triggered when Chosen’s dropdown is closed.
chosen:no_results Triggered when a search returns no matching results.

Note: all custom Chosen events (those that being with chosen:) also include the chosen object as a parameter.

Triggerable Events

You can trigger several events on the original select field to invoke a behavior in Chosen.

Example:

  // tell Chosen that a select has changed
  $('.my_select_box').trigger('chosen:updated');
Event Description
chosen:updated This event should be triggered whenever Chosen’s underlying select element changes (such as a change in selected options).
chosen:activate This is the equivalant of focusing a standard HTML select field. When activated, Chosen will capure keypress events as if you had clicked the field directly.
chosen:open This event activates Chosen and also displays the search results.
chosen:close This event deactivates Chosen and hides the search results.

Thanks and Peace,
SABIT SOLUTIONS

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