Checkboxes and radio buttons are commonly used on many types of forms, and you’ll most likely find yourself using them. Contact Form 7 even offers a few different types of modifications for your checkboxes and radio buttons.

Even though checkboxes and radio buttons are common, they are frequently used incorrectly. Your forms will be easier to understand and use if you follow the rules for checkboxes and radio buttons.

Checkboxes vs. radio buttons

When should I use checkboxes?

Checkboxes are used when you have a list of options and the user can select multiple choices. An important thing to note is checking one box doesn’t uncheck other boxes. An example of this could be a list of dates a person is available and they can check all that apply.

One exception to this rule is when it is a stand-alone single checkbox. For example, a user could check the box if they want to subscribe to a newsletter.

When should I use radio buttons?

Radio buttons are used when there is a list of two or more options and the user must select exactly one choice. Radio button options are mutually exclusive which means clicking a radio button will unselect any previously clicked radio button.

Because one radio button must be clicked, it’s a good idea to ensure that one is selected by default.

Build multi-part forms quickly and easily within Contact Form 7

Creating and modifying checkboxes and radio buttons

Creating a checkbox

In the Generate Tags section, click Checkboxes. This will pop open a section where you can create your form tag.

Click Generate Tag then Checkboxes

Click Generate Tag then Checkboxes

Once you enter in the choices, you can copy and paste the code into your form. For example, if you are creating a form for Spa services to choose from, your checkbox form tag might look like this:

Create checkboxes

You now have a checkbox list of three items, which all 1, 2, 3 or all 4 can be selected at the same time.

Creating a basic radio button

To create a radio button, select Radio Buttons from the Generate Tag drop down. Once you enter the list of options, copy and paste the tag into your form. The generate section for your radio buttons would look like this:

Generate radio buttons

Remember that with radio buttons, you can only select one of the options in your list.

After generating checkboxes and radio buttons, be sure to put them inside li tags when you copy and paste them into the Form section. Our example now looks like this:

Form section with checkbox and radio buttons

Form section with checkbox and radio buttons

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Other modifications for your checkbox and radio button

Default selections

When you have your list of checkboxes or radio buttons, you might want to pre-select one of the options.

Going back to the Spa Services checkbox list example, let’s say you wanted the first item, Pedicure, to be pre-checked on your checkbox list. In your tag
[checkbox checkbox-59 "Pedicure" "Manicure" "Facial" "Hot Stone Massage"]

you can add a special tag ‘default:1’ (don’t forget the : ). The complete line now looks like:
[checkbox checkbox-59 default:1 "Pedicure" "Manicure" "Facial" "Hot Stone Massage"]

The number 1 here indicates that the first item in your list, Pedicure, as the default selection. If you wanted the second item in your list, the tag would be default:2 .

For radio buttons, it is the same. If you wanted the default to be 2 guests, the complete tag would be:
[radio radio-175 default: 2 "1" "2" "3" "4 or more"]

Label First

By default for checkboxes and radio buttons, they will appear like this:

Normal checkbox list

If you wanted to change it so that the label is first and checkbox or button second, you can do this using the ‘label_first’ tag:
[checkbox checkbox-59 label_first "Pedicure" "Manicure" "Facial" "Hot Stone Massage"]

will look like:

Label first check list

See also

‘Other’ text box (additional information)

If you want to leave an open text option available on your checkbox or radio button list, you can do this using the ‘free_text’ tag and adding in an extra option for your user to check, then type in their response. For example:
[checkbox checkbox-59 free_text "Pedicure" "Manicure" "Facial" "Hot Stone Massage" "Other"]

will include the option ‘Other’ with a checkbox and a box underneath that can be typed in.

Open text checkbox

Making checkboxes exclusive

Although it does not follow W3C Web standards, there is the option to make checkboxes exclusive. Normally for checkboxes, you can check as many of the boxes as you like. If for some reason, you want only one option to be checked on a checkbox list, you can add an ‘exclusive’ tag:
[checkbox checkbox-59 exclusive "Pedicure" "Manicure" "Facial" "Hot Stone Massage"]

Adding this exclusive tag means a user would only be able to select Pedicure OR Manicure etc as their singular choice.

Build multi-part forms quickly and easily within Contact Form 7

Ensuring your form is easy to understand

Even though Contact Form 7 offers these options, when creating your checkbox or radio button, the most important things to pay attention to are your labels. The biggest problems with forms are often that labels are vague, misleading, or describe options that are difficult to understand. If your checkbox list or radio button list is easy to read and understand, then your form will be successful.

Extra reading:


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