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I'm building a form that contains a select but it's not rendering as a dropdown. It's rendering with a scrollbar and a dropdown down arrow

enter image description here

$form['my_select'] = [
  '#type' => 'select',
  '#empty_option' => '- None -',
  '#title' => $this->t('My Select'),
  '#options' => ['Option1', 'Option2'],
  '#size' => 6,
  '#weight' => '0',
];

What am I doing wrong?

  • 1
    If you switch to the default, Bartik theme, does it look how you expect? – No Sssweat Mar 24 at 21:42
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It's rendering as a list because you have set #size to 6, which means 6 rows will be visible. Either remove the #size property completely, or set it to 1 to display a normal dropdown.

From the documentation:

#size: The number of rows in the list that should be visible at one time.

  • 1
    That fixed it! Thank you! – Vecta Mar 25 at 14:25

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