500tech-react-select v0.6.2
React-Select
A Select control built with and for React. Initially built for use in KeystoneJS.
Demo & Examples
Live demo: jedwatson.github.io/react-select
To build the examples locally, run:
npm install
gulp dev
Then open localhost:8000
in a browser.
Project Status
This project is quite stable and ready for production use, however there are plans to improve it including:
- CSS Styles and theme support (working, could be improved)
- Documentation website (currently just examples)
- Custom options rendering
It's loosely based on Selectize (in terms of behaviour and user experience) and React-Autocomplete (as a native React Combobox implementation), as well as other select controls including Chosen and Select2.
Installation
The easiest way to use React-Select is to install it from NPM and include it in your own React build process (using Browserify, etc).
npm install react-select --save
You can also use the standalone build by including dist/select.js
and dist/default.css
in your page. If you use this, make sure you have already included the following dependencies:
Usage
React-Select generates a hidden text field containing the selected value, so you can submit it as part of a standard form. You can also listen for changes with the onChange
event property.
Options should be provided as an Array
of Object
s, each with a value
and label
property for rendering and searching. You can use a disabled
property to indicate whether the option is disabled or not.
The value
property of each option should be set to either a string or a number.
When the value is changed, onChange(newValue, [selectedOptions])
will fire.
var Select = require('react-select');
var options = [
{ value: 'one', label: 'One' },
{ value: 'two', label: 'Two' }
];
function logChange(val) {
console.log("Selected: " + val);
}
<Select
name="form-field-name"
value="one"
options={options}
onChange={logChange}
/>
Multiselect options
You can enable multi-value selection by setting multi={true}
. In this mode:
- Selected options will be removed from the dropdown menu
- The values of the selected items are joined using the
delimiter
property to create the input value - A simple value, if provided, will be split using the
delimiter
property - The
onChange
event provides an array of the selected options as the second argument - The first argument to
onChange
is always a string, regardless of whether the values of the selected options are numbers or strings
Async options
If you want to load options asynchronously, instead of providing an options
Array, provide a asyncOptions
Function.
The function takes two arguments String input, Function callback
and will be called when the input text is changed.
When your async process finishes getting the options, pass them to callback(err, data)
in a Object { options: [] }
.
The select control will intelligently cache options for input strings that have already been fetched. The cached result set will be filtered as more specific searches are input, so if your async process would only return a smaller set of results for a more specific query, also pass complete: true
in the callback object. Caching can be disabled by setting cacheAsyncResults
to false
(Note that complete: true
will then have no effect).
Unless you specify the property autoload={false}
the control will automatically load the default set of options (i.e. for input: ''
) when it is mounted.
var Select = require('react-select');
var getOptions = function(input, callback) {
setTimeout(function() {
callback(null, {
options: [
{ value: 'one', label: 'One' },
{ value: 'two', label: 'Two' }
],
// CAREFUL! Only set this to true when there are no more options,
// or more specific queries will not be sent to the server.
complete: true
});
}, 500);
};
<Select
name="form-field-name"
value="one"
asyncOptions={getOptions}
/>
Filtering options
You can control how options are filtered with the following properties:
matchPos
:"start"
or"any"
: whether to match the text entered at the start or any position in the option valuematchProp
:"label"
,"value"
or"any"
: whether to match the value, label or both values of each option when filteringignoreCase
:Boolean
: whether to ignore case or match the text exactly when filtering
matchProp
and matchPos
both default to "any"
.
ignoreCase
defaults to true
.
Advanced filters
You can also completely replace the method used to filter either a single option, or the entire options array (allowing custom sort mechanisms, etc.)
filterOption
:function(Object option, String filter)
returnsBoolean
. Will overridematchPos
,matchProp
andignoreCase
options.filterOptions
:function(Array options, String filter, Array currentValues)
returnsArray filteredOptions
. Will overridefilterOption
,matchPos
,matchProp
andignoreCase
options.
For multi-select inputs, when providing a custom filterOptions
method, remember to exclude current values from the returned array of options.
Further options
Property | Type | Description
:-----------------------|:--------------|:-------------------------------- value | any | initial field value valueRenderer | func | function which returns a custom way to render the value selected multi | bool | multi-value input disabled | bool | whether the Select is disabled or not options | array | array of options optionRenderer | func | function which returns a custom way to render the options in the menu delimiter | string | delimiter to use to join multiple values asyncOptions | func | function to call to get options autoload | bool | whether to auto-load the default async options set disableCache | bool | disables the options cache for asyncOptions placeholder | string | field placeholder, displayed when there's no value noResultsText | string | placeholder displayed when there are no matching search results clearable | bool | should it be possible to reset value clearValueText | string | title for the "clear" control clearAllText | string | title for the "clear" control when multi: true searchable | bool | whether to enable searching feature or not searchPromptText | string | label to prompt for search input name | string | field name, for hidden tag onChange | func | onChange handler: function(newValue) {} onFocus | func | onFocus handler: function(event) {} onBlur | func | onBlur handler: function(event) {} className | string | className for the outer element filterOption | func | method to filter a single option: function(option, filterString) filterOptions | func | method to filter the options array: function(options, filterString, values) matchPos | string | (any, start) match the start or entire string when filtering matchProp | string | (any, label, value) which option property to filter on ignoreCase | bool | whether to perform case-insensitive filtering inputProps | object | custom attributes for the Input (in the Select-control) e.g: {'data-foo': 'bar'} backspaceRemoves | bool | whether pressing backspace removes the last item when there is no input value
Contributing
See our CONTRIBUTING.md for information on how to contribute.
License
MIT Licensed. Copyright (c) Jed Watson 2015.
9 years ago