Using Components > The ComboBox component > Sizing ComboBox components |  |

Sizing ComboBox components

You can set the width but not the height of ComboBox components during authoring using the Free Transform tool, or at runtime using the `FComboBox.setSize` method. If the text of a list item is longer than the width of the combo box, the text is truncated to fit inside the box. The height of a ComboBox component is determined by the size of the font displaying the list items and the Row Count parameter, which specifies the number of items visible in the drop-down list at one time.