Standard select boxes

Use .selectpicker class on select element to convert it to Bootstrap Select.

<select class="selectpicker">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Select boxes with optgroups

Add options inside the optgroups to for group options

<select class="selectpicker">
    <optgroup label="Picnic">
        <option>Mustard</option>
        <option>Ketchup</option>
        <option>Relish</option>
    </optgroup>
    <optgroup label="Camping">
        <option>Tent</option>
        <option>Flashlight</option>
        <option>Toilet Paper</option>
    </optgroup>
</select>

Multiple select boxes

Add multiselect attribute to for multi-selection

<select class="selectpicker" multiple>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Live search

You can add a search input by passing data-live-search="true" attribute

<select class="selectpicker" data-live-search="true">
    <option>Fries</option>
    <option>Burger, Shake and a Smile</option>
    <option>Sugar, Spice and all things nice</option>
</select>

Keywords

Add key words to options to improve their searchability using data-tokens.

<select class="selectpicker" data-live-search="true">
    <option data-tokens="ketchup mustard">Hot Dog</option>
    <option data-tokens="mustard">Burger, Shake and a Smile</option>
    <option data-tokens="frosting">Sugar, Spice and all things nice</option>
</select>

Limit the number of selections

Limit the number of options that can be selected via the data-max-options.

<select class="selectpicker" multiple data-max-options="2">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Limit the number of selections in groups

Limit the number of group that can be selected using maxOptionsText.

<select class="selectpicker" multiple>
    <optgroup label="Condiments" data-max-options="2">
        <option>ustard^</option>
        <option>etchup^</option>
        <option>elish^</option>
    </optgroup>
    <optgroup label="Breads" data-max-options="2">
        <option>lain^</option>
        <option>teamed^</option>
        <option>oasted^</option>
    </optgroup>
</select>

Placeholder

Using the title attribute will set the default placeholder.

<select class="selectpicker" multiple title="Choose options">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Selected text

Set the title attribute on individual options to display alternative text when the option is selected

<select class="selectpicker">
    <option title="Combo 1">Hot Dog, Fries and a Soda</option>
    <option title="Combo 2">Burger, Shake and a Smile</option>
    <option title="Combo 3">Sugar, Spice and all things nice</option>
</select>

Selected text format

Specify how the selection is displayed with the data-selected-text-format attribute on a multiple select

<select class="selectpicker" multiple data-selected-text-format="count">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Selected text format

count > x : Where x is the number of items selected when the display format changes from values to count.

<select class="selectpicker" multiple data-selected-text-format="count > 3">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Onions</option>
</select>

Style individual options

Classes and styles added to options are transferred to the select box.

<select class="selectpicker">
    <option>Mustard</option>
    <option class="bg-danger">Ketchup</option>
    <option style="background: #8dbf42; color: #fff;">Relish</option>
</select>

Custom content

Insert custom HTML into the option with the data-content attribute

<select class="selectpicker">
    <option data-content="<span class='badge badge-primary'>Primary</span>">Primary</option>
    <option data-content="<span class='badge badge-secondary'>Secondary</span>">Secondary</option>
    <option data-content="<span class='badge badge-success'>Success</span>">Success</option>
    <option data-content="<span class='badge badge-warning'>Warning</span>">Warning</option>
</select>

Show Subtext

Add subtext to an option or optgroup with the data-subtext attribute.

<select class="selectpicker" data-show-subtext="true">
    <option data-subtext="French's">Mustard</option>
    <option data-subtext="Heinz">Ketchup</option>
    <option data-subtext="Sweet">Relish</option>
    <option data-subtext="Miracle Whip">Mayonnaise</option>
    <option data-divider="true">divider</option>
    <option data-subtext="Honey">Barbecue Sauce</option>
    <option data-subtext="Ranch">Salad Dressing</option>
    <option data-subtext="Sweet & Spicy">Tabasco</option>
    <option data-subtext="Chunky">Salsa</option>
</select>

Menu size

The size of the menu can also be specifed using the data-size attribute.

<select class="selectpicker" data-size="5">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
</select>

Select / Deselect all options

Adds two buttons to the top of the menu - Select All & Deselect All with data-actions-box="true"

.
<select class="selectpicker" multiple data-actions-box="true">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Divider

Add data-divider="true" to an option to turn it into a divider.

<select class="selectpicker">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option data-divider="true">divider</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
</select>

Menu header

Add a header to the dropdown menu data-header="Select a condiment"

<select class="selectpicker" data-header="Select a condiment"  data-size="5">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
    <option>Barbecue Sauce</option>
    <option>Salad Dressing</option>
    <option>Tabasco</option>
    <option>Salsa</option>
</select>

Dropup menu

Add dropupAuto to automatically change postion according to window.

<select class="selectpicker dropup">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Mayonnaise</option>
</select>

Disabled

Disabled select box

Disable Select box using disabled attribute on select element.

<select class="selectpicker" disabled>
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
</select>

Disabled options

Disable Select Option using disabled attribute on select option element.

<select class="selectpicker">
    <option>Mustard</option>
    <option disabled>Ketchup</option>
    <option>Relish</option>
</select>

Disabled options groups

Disable Select Group using disabled attribute on select optgroup element

<select class="selectpicker test">
    <optgroup label="Picnic" disabled>
        <option>Mustard</option>
        <option>Ketchup</option>
        <option>Relish</option>
    </optgroup>
    <optgroup label="Camping">
        <option>Tent</option>
        <option>Flashlight</option>
        <option>Toilet Paper</option>
    </optgroup>
</select>

Styling

Styling

You can set the button classes via the data-style attribute

<select class="selectpicker mb-4 ml-2" data-style="btn btn-outline-primary">
    <option>Mustard</option>
    <option>Ketchup</option>
    <option>Relish</option>
    <option>Onions</option>
</select>

Width

Grid

Wrap selects in grid columns, or any custom parent element, to easily enforce desired widths.

<div class="row">
    <div class="col-sm-3 col-12">
        <div class="form-group">
            <select class="selectpicker form-control">
                <option>Mustard</option>
                <option>Ketchup</option>
                <option>Relish</option>
            </select>
        </div>
    </div>
    <div class="col-sm-9 col-12">
        <div class="form-group">
            <select class="selectpicker form-control">
                <option>Mustard</option>
                <option>Ketchup</option>
                <option>Relish</option>
            </select>
        </div>
    </div>
</div>

Custom Width

use the data-width attribute to set the width of the select

Data Width = "fit"
Data Width = "200px"
Data Width = "75%"
==================
Data Width = "fit"
==================
<div class="col-sm-12">
    <select class="selectpicker mb-4" data-width="fit">
        <option>Mustard</option>
        <option>Ketchup</option>
        <option>Relish</option>
        <option>Onions</option>
    </select>
</div>


==================
Data Width = "200px"
==================

<div class="col-sm-12">
    <select class="selectpicker mb-4" data-width="200px">
        <option>Mustard</option>
        <option>Ketchup</option>
        <option>Relish</option>
        <option>Onions</option>
    </select>
</div>

==================
Data Width = "75%"
==================
<div class="col-sm-12">
    <select class="selectpicker mb-4" data-width="75%">
        <option>Mustard</option>
        <option>Ketchup</option>
        <option>Relish</option>
        <option>Onions</option>
    </select>
</div>