java - JavaFX ComboBox shows scrollbars on first click -

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i'm doing program in javafx comboboxes, , loading fxml layout.

when click first time in combobox few items (only two, example), scrollbar shown @ right side. after open again, scrollbar doesn't appear anymore.

i tried solutions. 1 worked apply css directly in fxml, sets cell size fixed value. solution inside code (for example, in initialize function in controller) better case.

thanks help.

if options stay fixed suggest using choicebox instead of combobox. same, without scrollable option. if insist using combobox can try combobox.setvisiblerowcount()


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