A Multi Select component built with and for React

Multi select

Multi select is a straight forward component that helps a user select multiple items in a clear and filterable way.

Installation

Installation using npm:

 npm install @kenshooui/react-multi-select --save

Installation using Yarn:

 yarn add @kenshooui/react-multi-select

How to use

import React, { Component } from "react";
import MultiSelect from "@kenshooui/react-multi-select";

class Example extends Component {
  constructor(props) {
    super(props);
    this.handleChange = this.handleChange.bind(this);
    this.state = {
      items: [
        { id: 0, label: "item 1" },
        { id: 2, label: "item 2" },
        { id: 3, label: "item 3" },
        { id: 4, label: "item 4" }
      ],
      selectedItems: []
    };
  }

  handleChange(selectedItems) {
    this.setState({ selectedItems });
  }
  render() {
    const { items, selectedItems } = this.state;
    return (
      <MultiSelect
        items={items}
        selectedItems={selectedItems}
        onChange={this.handleChange}
      />
    );
  }
}

Properties

Name	Type	Default	Description
`items`	`List`	[]	list of items.
`selectedItems`	`Array`	[]	selected list to start with (subgroup of items).
`onChange`	`function`	()=>{}	callback for changed event.
`loading`	`boolean`	false	toggle to show loading indication.
`messages`	`Object`	{}	custom messages. Please see below for the availabale messages.
`showSearch`	`boolean`	true	toggle to show search option.
`showSelectAll`	`boolean`	true	toggle to show select all option in list.
`showSelectedItems`	`boolean`	true	toggle to show selected items right pane.
`wrapperClassName`	`String`	''	wrapper class name - Used for customizing the style.
`height`	`number`	400	available items list height.
`itemHeight`	`number`	40	the height of an item in the list.
`selectAllHeight`	`number`	`itemHeight`	the height of the selectAll component, by default will use the value of the itemHeight.
`maxSelectedItems`	`number`		defines the maximum items that can be selected, overrides showSelectAll.
`filterFunction`	`function`	based on label	The function used to filter items based on the search query.
`searchRenderer`	`Component`		Component to replace the default Search component.
`selectedItemRenderer`	`Component`		Component to replace the default selected item component in the destination list.
`loaderRenderer`	`Component`		Component to replace the default loader component.
`selectAllRenderer`	`Component`		Component to replace the default select all component.
`itemRenderer`	`Component`		Component to replace the default item component in the source list.
`selectionStatusRenderer`	`Component`		Component to replace the default selection status component.
`noItemsRenderer`	`Component`		Component to replace the default no items component.

Customization

Renderers

You can replace the renderers of the following components:

Item

Use the itemRenderer to replace the default component.

Each item receives the following props:

item - holds your item data

height - receives the height defined by the list

onClick - the event to toggle selection on the component

checked - indicates if the item is selected

indeterminate - used by the select all component to display indeterminate mode

disabled - defines if item should be disabled

Select All

Use the selectAllRenderer to replace the default component.

The SelectAll component receives the following props:

height - receives the height defined by the parent

onClick - Triggers the select all/clear all event on click

isAllSelected - Indicates that all items are selected

selectAllMessage - Defines the message for the SelectAll component

selectedIds - holds a list of ids of all the selected items

Selected Item

Use the selectAllRenderer to replace the default component.

The SelectedItem component receives the following props:

item - holds your item data

height - receives the height defined by the list

Search

Use the searchRenderer to replace the default component.

The Search component receives the following props:

searchPlaceholder - defines the message to display in the search placeholder

onChange - triggers the action of changing the search value

Selection Status

Use the selectionStatusRenderer to replace the default component.

The SelectionStatus component receives the following props:

selected - an array of all the selected ids

clearAll - callback to clear all selected items

clearAllMessage - text to display in the clear all text

noneSelectedMessage - text to display when no items are selected

selectedMessage - text to display when there are items selected

Loader

Use the loaderRenderer to replace the default component.

Does not receive any props.

No Items

Use the noItemsRenderer to replace the default component.

Does not receive any props.

Search Function

In order to accommodate complex item filters, you can provide your own filter method in the filterFunction prop.

Example (default):

value => item =>
  String(item.label)
    .toLowerCase()
    .includes(value.toLowerCase())

Performs search on server side

value => {
    callServer(value).then(items => this.setState({items}));
    // At the end return the expected method
    return item => true;
}

Messages

You can use your own messages. Here is the default messages object:

 messages: {
    searchPlaceholder: "Search...",
    noItemsMessage: "No Items...",
    noneSelectedMessage: "None Selected",
    selectedMessage: "delected",
    selectAllMessage: "Select All",
    clearAllMessage: "Clear All",
    disabledItemsTooltip: "You can only select 1 file"
  }