Building a Dynamic Pricing Calculator with Checkboxes in Webflow | Finsuite Tutorial

Published on
August 7, 2020

Creating a Pricing Calculator with Checkboxes in Webflow

Webflow offers a powerful and user-friendly platform for building and designing websites without the need to write code. In this tutorial, we will explore how to create a pricing calculator with the help of checkboxes. This interactive feature will allow users to select options and see the total price dynamically update as they make their selections. We will cover how to set up the structure, classes, data attributes, and JavaScript to achieve this functionality within Webflow.

Overview of the Pricing Calculator

The pricing calculator we are going to build will feature a set of checkboxes with assigned values. As users check or uncheck the checkboxes, the total value will update in real-time. Additionally, when the user submits the form, the calculated total value will be sent with the form data.

To begin, we need to understand the structure, classes, and data attributes for the checkboxes within Webflow.

Structure and Classes

In Webflow, we will utilize specific classes to define the behavior and appearance of our checkboxes. These classes will be essential for setting up the interactive pricing calculator. The following are the essential classes we will use:

  1. Hack 42 Checkbox Label: This class is crucial for defining the clickable area of the checkbox. When styling the checkbox label, we need to ensure that it covers the entire checkbox field, providing a better user experience.

  2. Hack 42 Added Value: This class is used to display the total calculated value based on the selected checkboxes.

  3. Hack 42 Send Value: This class is applied to a hidden field used to submit the total added value through the form.

Data Attributes

In addition to classes, we will apply data attributes to the checkboxes. These data attributes are used to assign values to the checkboxes. When a checkbox is checked, its assigned value will be added to the total calculation. Here is an example of a data attribute we will use:

data-add-value="200"

In this example, the data-add-value attribute contains the value that will be added to the total when the checkbox is checked.

With an understanding of the structure, classes, and data attributes, we can now proceed with building the pricing calculator in Webflow.

Building the Pricing Calculator in Webflow

Setting Up the Design

In the Webflow Designer, we will create a form and add the necessary checkboxes for the pricing calculator. Each checkbox will be accompanied by a label, and we will apply the classes and data attributes as discussed above.

Working with Classes

It's important to ensure that the classes we discussed earlier, such as Hack 42 Checkbox Label and Hack 42 Added Value, are properly applied to the respective elements within the Webflow Designer. By doing so, we define the behavior and appearance of the checkboxes and the total value display.

Applying Data Attributes

In the Webflow Navigator, we will locate the checkbox fields and add the relevant data attributes to them. For each checkbox, a data-add-value attribute will be assigned with the corresponding numerical value that should be added to the total when the checkbox is checked.

JavaScript Implementation

To enable the dynamic calculation and updating of the total value, we will employ JavaScript. Within the Webflow project, we can include custom JavaScript code to handle the checkbox interactions and calculate the total value. The JavaScript code will listen for checkbox events, update the total value, and submit the calculated value with the form.

Dynamically Calculating Total Value

When a user clicks or unclicks a checkbox, the JavaScript code will track these interactions, retrieve the assigned values of the checkboxes, and update the total value dynamically. This ensures that the user sees the total value change in real-time as they make selections.

Submitting Total Value with the Form

We will also include JavaScript code to ensure that the calculated total value is submitted along with the form data. This is important for processing and capturing the total value when the user submits their selections.

Implementing JavaScript for the Pricing Calculator

Integrating JavaScript Code

In Webflow, JavaScript can be integrated using an HTML Embed element. The JavaScript code will be added within the <script> tags, allowing for interaction with the checkboxes and the total value display within the form.

Explaining the JavaScript Code

The JavaScript code will consist of several functions and logic to handle the checkbox interactions and calculate the total value. It will involve event listeners for the checkbox labels, defining variables for the total value display and the checkbox inputs, and updating the displayed value based on the checkbox selections.

Formatting the Total Value

Additionally, the JavaScript code will format the total value to ensure it appears in a user-friendly and readable format. This may include adding commas for large numbers to enhance the visual presentation of the total value.

Updating the Hidden Input

The JavaScript code will also update the hidden input field, assigned with the Hack 42 Send Value class, to ensure that the calculated total value is included in the form data when submitted.

Conclusion

By following the steps outlined in this tutorial, you can create a functional pricing calculator with checkboxes in Webflow. This interactive feature provides users with a seamless and dynamic experience when selecting options and viewing the calculated total value. With a combination of classes, data attributes, and JavaScript, you can build engaging forms with real-time calculations to enhance user interaction on your website.

For further exploration, you can also apply similar concepts to other form elements, such as selects and radios, using Webflow's features. Keep experimenting and leveraging Webflow's capabilities to create engaging and interactive web experiences.

Thank you for taking the time to learn about building a pricing calculator with checkboxes in Webflow. If you're interested in exploring more Webflow hacks and techniques, consider checking out the available resources and tutorials from Finsuite for additional insights and ideas.