Insights and Inspiration – The Hostnicker Blog

Setting Up Conditional Logic in Webflow Forms

May 21, 2024

To implement conditional logic in Webflow forms, follow these straightforward steps:

1. **Create Your Form**: Start by opening your Webflow project and going to the page where you want to place your form. Drag and drop the Form Block element from the Add panel onto your canvas. Add form fields like Input, Dropdown, and Checkbox to the Form Block as needed.

2. **Define Your Conditional Logic Options**: Consider what user inputs will trigger additional fields to appear. For instance, if there's a dropdown for selecting a service type, different options may trigger different follow-up fields. List these potential answers and determine which fields should be shown or hidden for each response.

3. **Set Up the Fields**: Add fields that will appear conditionally based on user input. Style these fields, and ensure they are visible immediately after creation to facilitate easy adjustments.

4. **Add Custom Code for Conditional Logic**: Since Webflow doesn’t support conditional logic directly in the designer, custom JavaScript is necessary. Go to the Page Settings for the relevant page and locate the Custom Code section. Insert the following JavaScript code inside the Before Body tag:

```javascript
<script>
document.addEventListener('DOMContentLoaded', function() {
const serviceDropdown = document.querySelector('#yourDropdownID');
const additionalField = document.querySelector('#yourAdditionalFieldID');

serviceDropdown.addEventListener('change', function() {
if (serviceDropdown.value === 'SpecificOption') {
additionalField.style.display = 'block';
} else {
additionalField.style.display = 'none';
}
});
});
</script>
```

Replace `#yourDropdownID` and `#yourAdditionalFieldID` with the actual IDs of your dropdown and the field to be controlled. Change `SpecificOption` to the value that should trigger the additional field’s appearance.

5. **Test Your Form**: Publish your project to make the code live. Visit the webpage and navigate to the form to test its functionality. Ensure the fields appear and disappear as intended based on the user selections.

6. **Make Adjustments**: If the form doesn’t behave correctly, revisit the Webflow Designer or the Custom Code section to tweak your setup. Double-check that your field IDs match those used in the JavaScript and verify that your conditional logic is accurately configured.

By setting up conditional logic in your Webflow forms, you enhance the user experience by displaying only relevant questions and options, making the data collection process more fluid and engaging. You can further explore adding complex logic by including additional conditions or interactions based on different inputs.