Button Group ^commun

L'idée est de regrouper une série de boutons sur une ligne ou sur une colonne.
Un conteneur avec la classe .btn-group et quelques éléments d'accessibilité (aria-label="...", role="group") sont nécessaires.

<div class="btn-group" role="group" aria-label="Basic example">
    <button type="button" class="btn btn-primary">Left</button>
    <button type="button" class="btn btn-primary">Middle</button>
    <button type="button" class="btn btn-primary">Right</button>
</div>

Il est également possible d'utiliser des balises a et de jouer avec leurs statuts.

<div class="btn-group">
    <a href="#" class="btn btn-primary active" aria-current="page">Active link</a>
    <a href="#" class="btn btn-primary">Link</a>
    <a href="#" class="btn btn-primary">Link</a>
</div>

Possibilité de mixer les différents styles des boutons dans un même groupe.

<div class="btn-group" role="group" aria-label="Basic mixed styles example">
    <button type="button" class="btn btn-danger">Left</button>
    <button type="button" class="btn btn-warning">Middle</button>
    <button type="button" class="btn btn-success">Right</button>
</div>

<div class="btn-group" role="group" aria-label="Basic outlined example">
    <button type="button" class="btn btn-outline-primary">Left</button>
    <button type="button" class="btn btn-outline-primary">Middle</button>
    <button type="button" class="btn btn-outline-primary">Right</button>
</div>

Il est possible de combiner les checkbox et boutons radio. Les styles sont alors déportés sur les label.

<div class="btn-group" role="group" aria-label="Basic checkbox toggle button group">
    <input type="checkbox" class="btn-check" id="btncheck1" autocomplete="off">
    <label class="btn btn-outline-primary" for="btncheck1">Checkbox 1</label>

    <input type="checkbox" class="btn-check" id="btncheck2" autocomplete="off">
    <label class="btn btn-outline-primary" for="btncheck2">Checkbox 2</label>

    <input type="checkbox" class="btn-check" id="btncheck3" autocomplete="off">
    <label class="btn btn-outline-primary" for="btncheck3">Checkbox 3</label>
</div>

<div class="btn-group" role="group" aria-label="Basic radio toggle button group">
    <input type="radio" class="btn-check" name="btnradio" id="btnradio1" autocomplete="off" checked>
    <label class="btn btn-outline-primary" for="btnradio1">Radio 1</label>

    <input type="radio" class="btn-check" name="btnradio" id="btnradio2" autocomplete="off">
    <label class="btn btn-outline-primary" for="btnradio2">Radio 2</label>

    <input type="radio" class="btn-check" name="btnradio" id="btnradio3" autocomplete="off">
    <label class="btn btn-outline-primary" for="btnradio3">Radio 3</label>
</div>

Quelques exemples de composants plus complexes avec l'ajout de classes utilitaires pour espacer les éléments.

<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
    <div class="btn-group me-2" role="group" aria-label="First group">
        <button type="button" class="btn btn-primary">1</button>
        <button type="button" class="btn btn-primary">2</button>
        <button type="button" class="btn btn-primary">3</button>
        <button type="button" class="btn btn-primary">4</button>
    </div>
    <div class="btn-group me-2" role="group" aria-label="Second group">
        <button type="button" class="btn btn-secondary">5</button>
        <button type="button" class="btn btn-secondary">6</button>
        <button type="button" class="btn btn-secondary">7</button>
    </div>
    <div class="btn-group" role="group" aria-label="Third group">
        <button type="button" class="btn btn-info">8</button>
    </div>
</div>

<div class="btn-toolbar mb-3" role="toolbar" aria-label="Toolbar with button groups">
    <div class="btn-group me-2" role="group" aria-label="First group">
        <button type="button" class="btn btn-outline-secondary">1</button>
        <button type="button" class="btn btn-outline-secondary">2</button>
        <button type="button" class="btn btn-outline-secondary">3</button>
        <button type="button" class="btn btn-outline-secondary">4</button>
    </div>
    <div class="input-group">
        <div class="input-group-text" id="btnGroupAddon">@</div>
        <input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon">
    </div>
</div>

<div class="btn-toolbar justify-content-between" role="toolbar" aria-label="Toolbar with button groups">
    <div class="btn-group" role="group" aria-label="First group">
        <button type="button" class="btn btn-outline-secondary">1</button>
        <button type="button" class="btn btn-outline-secondary">2</button>
        <button type="button" class="btn btn-outline-secondary">3</button>
        <button type="button" class="btn btn-outline-secondary">4</button>
    </div>
    <div class="input-group">
        <div class="input-group-text" id="btnGroupAddon2">@</div>
        <input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon2">
    </div>
</div>

Il est possible de piloter la taille des boutons directement sur le conteneur (au lieu de le préciser bouton par bouton) via la classe .btn-group-lg ou .btn-group-sm.

<div class="btn-group btn-group-lg" role="group" aria-label="Large button group">
    <button type="button" class="btn btn-outline-primary">Left</button>
    <button type="button" class="btn btn-outline-primary">Middle</button>
    <button type="button" class="btn btn-outline-primary">Right</button>
</div>
<br>
<div class="btn-group" role="group" aria-label="Default button group">
    <button type="button" class="btn btn-outline-primary">Left</button>
    <button type="button" class="btn btn-outline-primary">Middle</button>
    <button type="button" class="btn btn-outline-primary">Right</button>
</div>
<br>
<div class="btn-group btn-group-sm" role="group" aria-label="Small button group">
    <button type="button" class="btn btn-outline-primary">Left</button>
    <button type="button" class="btn btn-outline-primary">Middle</button>
    <button type="button" class="btn btn-outline-primary">Right</button>
</div>

Placement d'un .btn-group à l'intérieur d'un autre .btn-group pour un usage de menu déroulant (composant dropdown).

<div class="btn-group" role="group" aria-label="Button group with nested dropdown">
    <button type="button" class="btn btn-primary">1</button>
    <button type="button" class="btn btn-primary">2</button>

    <div class="btn-group" role="group">
        <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
        <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
</div>

<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
    <button type="button" class="btn btn-primary">Button</button>
    <button type="button" class="btn btn-primary">Button</button>
    <button type="button" class="btn btn-primary">Button</button>
    <button type="button" class="btn btn-primary">Button</button>
</div>

<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
    <div class="btn-group" role="group">
        <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
        <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
    <button type="button" class="btn btn-primary">Button</button>
    <button type="button" class="btn btn-primary">Button</button>
    <div class="btn-group dropstart" role="group">
        <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
        <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
    <div class="btn-group dropend" role="group">
        <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
        <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
    <div class="btn-group dropup" role="group">
        <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
        <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
</div>

<div class="btn-group-vertical" role="group" aria-label="Vertical radio toggle button group">
    <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio1" autocomplete="off" checked>
    <label class="btn btn-outline-danger" for="vbtn-radio1">Radio 1</label>
    <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio2" autocomplete="off">
    <label class="btn btn-outline-danger" for="vbtn-radio2">Radio 2</label>
    <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio3" autocomplete="off">
    <label class="btn btn-outline-danger" for="vbtn-radio3">Radio 3</label>
</div>