組合框/無線電組是否應該以表格標記為"必需"?


7

假設您有一個Web表單,其中某些字段是可選的,而某些則是必填的。

這些字段之一是組合框或單選按鈕組,已為其預選擇有效的默認選項,因此無法"取消設置"此字段。

換句話說,此字段始終對提交有效 ,但可能不正確 ,而且我無法讓用戶像很多人一樣"對該"字段進行"修飾"所有"可選"字段。

此字段應標記為"必填"嗎?

注意:我寧願保留默認的預選選項,因為對於一半以上的用例而言,此值是正確的值。

8

It is recommended to select a default. It is also very helpful that you already know the most popular choice, which you would obviously put first in the list and preselect.

Marking mandatory input is common practice, even for a radio selection where a default is selected and where de-selecting is not provided, and even more so if for consistency reasons if there are other input elements in the form. (If this radio selection is the only interaction on the site, you could argue it is not necessary to mark it mandatory.)

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Quoting from the NNgroup article Radio Buttons: Select One by Default or Leave All Unselected?

When a choice in a set of radio buttons is known to be the most desired or frequently selected one, it is very helpful to select this by default in the design. Doing this reduces the interaction cost and can save the user time and clicks.


If you would not want to default users to a value and have them actively think and select, then a dropdown might be a good alternative.

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