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Learn how to manage expandable rows in the `react-data-table-component` so that only one row is expanded at a time, enhancing user experience and data management.
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How to Expand Only One Row at a Time in React-DataTable Component

When working on user interfaces, especially those that handle tabular data, being able to collapse and expand rows can make information easier to digest. However, in some scenarios, you might want to enhance usability by allowing only one row to be expanded at any given time. This can be particularly useful in a React application using the react-data-table-component, where users might find it overwhelming to view multiple expanded rows simultaneously.

In this guide, we’ll tackle the question of how to achieve that functionality within your React-DataTable implementation. By using a combination of state management and props, we can configure our data table to ensure that only one row can be expanded at a time.

The Problem

You're probably familiar with the setup that allows for expandable rows using the react-data-table-component. You’ve likely already set the expandableRows prop to true and defined the expandableRowsComponent. However, the default behavior of the component allows for multiple rows to be expanded at once, which might not be the user experience you envision.

So, what do you do?

You need a way to ensure that when another row is expanded, the previously expanded row collapses. This solution involves leveraging the onRowExpandToggled function and maintaining a piece of state to track the currently expanded row.

The Solution

Step-by-Step Implementation

State Management: You need to declare a state variable to keep track of the currently expanded row.

Update Row Expansion: Use the onRowExpandToggled event to handle the logic for collapsing the previously expanded row.

Here's how to implement it:

[[See Video to Reveal this Text or Code Snippet]]

Breakdown of Key Components

State Variable (currentRow): This state variable helps us keep track of which row is currently expanded. Initially, it is set to null, indicating no rows are expanded.

Expandable Row Logic:

The expandableRowExpanded prop checks if the currently iterated row equals the currentRow. If it does, that row will be expanded.

Row Click Handling:

The onRowClicked prop updates the currentRow state whenever a row is clicked. This effectively sets the clicked row as expanded.

Auto-Collapse Logic:

The onRowExpandToggled prop gives you access to whether a row is currently expanded or collapsed. If a row is expanded, it sets that row as currentRow. If collapsed, it resets currentRow to null.

Conclusion

By following these steps, you can successfully configure your react-data-table-component to only allow one row to be expanded at a time. This improves the user experience by preventing information overload and ensures that users can focus on one piece of data at a time.

Try implementing this method in your projects, and watch how it enhances navigation and data visibility for your users! If you have any questions or need further clarification, feel free to reach out.