Bootstrap 5: Legördülő menük

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Alapvető legördülő menü

A legördülő menü egy átkapcsolható menü, amely lehetővé teszi a felhasználó számára, hogy egy értéket válasszon egy előre meghatározott listából:

Példa

<div class="dropdown">
  <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
    Dropdown button
  </button>
  <ul class="dropdown-menu">
    <li><a class="dropdown-item" href="#">Link 1</a></li>
    <li><a class="dropdown-item" href="#">Link 2</a></li>
    <li><a class="dropdown-item" href="#">Link 3</a></li>
  </ul>
</div>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>The .dropdown class is used to indicate a dropdown menu.</p>
  <p>Use the .dropdown-menu class to actually build the dropdown menu.</p>
  <p>To open the dropdown menu, use a button or a link with a class of .dropdown-toggle and data-toggle="dropdown".</p>                                          
  <div class="dropdown">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropdown button
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Példa Magyarázva

A .dropdown osztály egy legördülő menüt jelöl.

A legördülő menü megnyitásához használjon egy .dropdown-toggle osztályú gombot vagy hivatkozást és a data-bs- toggle="dropdown" attribútumot.

Adja hozzá a .dropdown-menu osztályt egy <div> elemhez a legördülő menü létrehozásához. Ezután adja hozzá a .dropdown-item osztályt a legördülő menü minden eleméhez (hivatkozásokhoz vagy gombokhoz).

Legördülő elválasztó

Link 1 Link 2 Link 3
Another link

A .dropdown-divider osztály a legördülő menüben lévő hivatkozások vékony vízszintes szegéllyel történő elválasztására szolgál:

Példa

 <li><hr class="dropdown-divider"></hr></li>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>The .dropdown-divider class is used to separate links inside the dropdown menu with a thin horizontal line:</p>

  <div class="dropdown">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropdown button
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
      <li><hr class="dropdown-divider"></li>
      <li><a class="dropdown-item" href="#">Another link</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Legördülő fejléc

Dropdown header 1
Link 1 Link 2 Link 3
Dropdown header 2
Another link

A .dropdown-header osztály fejlécek hozzáadására szolgál a legördülő menüben:

Példa

 <li><h5 class="dropdown-header">Dropdown header 1</h5></li>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>The .dropdown-header class is used to add headers inside the dropdown menu:</p>

  <div class="dropdown">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropdown button
    </button>
    <ul class="dropdown-menu">
      <li><h5 class="dropdown-header">Dropdown header 1</h5></li>
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
      <li><h5 class="dropdown-header">Dropdown header 2</h5></li>
      <li><a class="dropdown-item" href="#">Another link</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Letiltás és aktív elemek

Normal Active Disabled

Jelöljön ki egy adott legördülő elemet a .active osztállyal (kék háttérszínt ad).

Egy elem letiltásához a legördülő menüben használja a .disabled osztályt (világosszürke szövegszínt kap, és a „parkolás tilos” ikont az egérmutatón):

Példa

<li><a class="dropdown-item" href="#">Normal</a></li>
<li><a class="dropdown-item active" href="#">Active</a></li>
<li><a class="dropdown-item disabled" href="#">Disabled</a></li>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>The .active class adds a blue background color to the active link.</p>
  <p>The .disabled class disables a dropdown item (grey text color and a no-parking-sign on hover).</p>
  
  <div class="dropdown">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropdown button
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Normal</a></li>
      <li><a class="dropdown-item active" href="#">Active</a></li>
      <li><a class="dropdown-item disabled" href="#">Disabled</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Legördülő menü pozíciója

Link 1 Link 2 Link 3
Link 1 Link 2 Link 3

Létrehozhat egy "dropend" vagy "dropstart" menüt is a .dropend vagy a .dropstart hozzáadásával. osztályt a legördülő elemre. Vegye figyelembe, hogy a mutató/nyíl automatikusan hozzáadásra kerül:

Dropright

<div class="dropdown dropend">

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>Add the .dropend class next to the dropdown menu to right-align the dropdown. Note that the caret/arrows is added automatically:</p>

  <div class="dropdown dropend">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropend
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Normal</a></li>
      <li><a class="dropdown-item active" href="#">Active</a></li>
      <li><a class="dropdown-item disabled" href="#">Disabled</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Droppleft

<div class="dropdown dropstart">

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>Add the .dropstart class next to the dropdown menu to left-align the dropdown. Note that the caret/arrow is added automatically. Also note that we float the dropdown to the right:</p>

  <div class="dropdown dropstart text-end">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropstart
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Normal</a></li>
      <li><a class="dropdown-item active" href="#">Active</a></li>
      <li><a class="dropdown-item disabled" href="#">Disabled</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Legördülő menü jobbra

Link 1 Link 2 Link 3

A legördülő menü jobbra igazításához adja hozzá a .dropdown-menu-end osztályt a .dropdown-menu elemhez:

Példa

<div class="dropdown-menu dropdown-menu-end">

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>Add the .dropdown-menu-end class to .dropdown-menu to right-align the dropdown menu.</p>
                                    
  <div class="dropdown dropdown-menu-end">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Wide dropdown button to demonstrate this example
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Dropup

Link 1 Link 2 Link 3

Ha azt szeretné, hogy a legördülő menü felfelé táguljon, nem pedig lefelé, módosítsa a <div> elemet a class="dropdown" karakterlánccal a "dropup" értékre:

Példa

<div class="dropup">

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>The .dropup class makes the dropdown menu expand upwards instead of downwards:</p>
  <p>It must be room for the dropup menu to grow. That is why we add some extra lorem ipsum text.</p>
  <p>Lorem ipsum one more time!</p>
  
  <div class="dropup">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropup button
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
    </ul>
  </div>
</div>

</body>
</html>

Legördülő szöveg

Link 1 Link 2 Text Link Just Text

A .dropdown-item-text osztály egyszerű szöveg hozzáadására szolgál legördülő elem, vagy hivatkozásokon használják az alapértelmezett hivatkozásstílushoz.

Példa

<ul class="dropdown-menu">
  <li><a class="dropdown-item" href="#">Link 1</a></li>
  <li><a class="dropdown-item" href="#">Link 2</a></li>
  <li><a class="dropdown-item" href="#">Link 3</a></li>
  <li><a class="dropdown-item-text" href="#">Text Link</a></li>
  <li><span class="dropdown-item-text">Just Text</span></li>
</ul>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdowns</h2>
  <p>The .dropdown-item-text class is used to add plain text to a dropdown, or used on links for default link styling.</p>                                        

  <div class="dropdown">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">
      Dropdown button
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Link 1</a></li>
      <li><a class="dropdown-item" href="#">Link 2</a></li>
      <li><a class="dropdown-item" href="#">Link 3</a></li>
      <li><a class="dropdown-item-text" href="#">Text Link</a></li>
      <li><span class="dropdown-item-text">Just Text</span></li>
    </ul>
  </div>
</div>

</body>
</html>

Csoportosított gombok legördülő menüvel

Tablet Smartphone

Példa

<div class="btn-group">
  <button type="button" class="btn btn-primary">Apple</button>
  <button type="button" class="btn btn-primary">Samsung</button>
  <div class="btn-group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">Sony</button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Tablet</a></li>
      <li><a class="dropdown-item" href="#">Smartphone</a></li>
    </ul>
  </div>
</div>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Nesting Button Groups</h2>
  <p>Nest button groups to create dropdown menus:</p>
  <div class="btn-group">
    <button type="button" class="btn btn-primary">Apple</button>
    <button type="button" class="btn btn-primary">Samsung</button>
    <div class="btn-group">
      <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">Sony</button>
      <ul class="dropdown-menu">
        <li><a class="dropdown-item" href="#">Tablet</a></li>
        <li><a class="dropdown-item" href="#">Smartphone</a></li>
      </ul>
    </div>
  </div>
</div>

</body>
</html>

Split Button Legördülő menük

Link 1 Link 2
Link 1 Link 2
Link 1 Link 2
Link 1 Link 2
Link 1 Link 2
Link 1 Link 2

Példa

<div class="btn-group">
  <button type="button" class="btn btn-primary">Primary</button>
  <button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
  </button>
  <div class="dropdown-menu">
    <a class="dropdown-item" href="#">Link 1</a>
    <a class="dropdown-item" href="#">Link 2</a>
  </div>
</div>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Dropdown Split Buttons</h2>
  <div class="btn-group">
    <button type="button" class="btn btn-primary">Primary</button>
    <button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
    </button>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Link 1</a>
      <a class="dropdown-item" href="#">Link 2</a>
    </div>
  </div>
  
  <div class="btn-group">
    <button type="button" class="btn btn-secondary">Secondary</button>
    <button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
    </button>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Link 1</a>
      <a class="dropdown-item" href="#">Link 2</a>
    </div>
  </div>

  <div class="btn-group">
    <button type="button" class="btn btn-success">Success</button>
    <button type="button" class="btn btn-success dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
    </button>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Link 1</a>
      <a class="dropdown-item" href="#">Link 2</a>
    </div>
  </div>

  <div class="btn-group">
    <button type="button" class="btn btn-info">Info</button>
    <button type="button" class="btn btn-info dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
    </button>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Link 1</a>
      <a class="dropdown-item" href="#">Link 2</a>
    </div>
  </div>

  <div class="btn-group">
    <button type="button" class="btn btn-warning">Warning</button>
    <button type="button" class="btn btn-warning dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
    </button>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Link 1</a>
      <a class="dropdown-item" href="#">Link 2</a>
    </div>
  </div>

  <div class="btn-group">
    <button type="button" class="btn btn-danger">Danger</button>
    <button type="button" class="btn btn-danger dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
    </button>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Link 1</a>
      <a class="dropdown-item" href="#">Link 2</a>
    </div>
  </div>
</div>

</body>
</html>

Függőleges gombcsoport legördülő menüvel

Tablet Smartphone

Példa

<div class="btn-group-vertical">
  <button type="button" class="btn btn-primary">Apple</button>
  <button type="button" class="btn btn-primary">Samsung</button>
  <div class="btn-group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">Sony</button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Tablet</a></li>
      <li><a class="dropdown-item" href="#">Smartphone</a></li>
    </ul>
  </div>
</div>

Próbálja ki Ön is →

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h2>Vertical Button Group with Dropdown</h2>
  <div class="btn-group-vertical">
    <button type="button" class="btn btn-primary">Apple</button>
    <button type="button" class="btn btn-primary">Samsung</button>
    <div class="btn-group">
      <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">Sony</button>
      <ul class="dropdown-menu">
        <li><a class="dropdown-item" href="#">Tablet</a></li>
        <li><a class="dropdown-item" href="#">Smartphone</a></li>
      </ul>
    </div>
  </div>
</div>

</body>
</html>