Скачать или смотреть How to Dynamically Update Selected Values in React-Select Dropdowns

Learn how to effectively update selected options in React-Select dropdowns by modifying the inner properties of your props. Improve user experience with dynamic value changes!
---
This video is based on the question https://stackoverflow.com/q/72267422/ asked by the user 'Vahe' ( https://stackoverflow.com/u/1691103/ ) and on the answer https://stackoverflow.com/a/72277202/ provided by the user 'Vahe' ( https://stackoverflow.com/u/1691103/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: React-Select: How do I update the selected option dropdown's defaultValue on selected value onChange?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Updating Selected Values in React-Select Dropdowns: A Guide

When working with forms in React applications, especially when using libraries like React-Select, managing your component's state can sometimes become tricky. A common question developers face is how to update the displayed default value of a dropdown when a new option is selected.

The Problem

Imagine you have multiple dropdowns powered by React-Select, such as selecting owners and approvers for a task or a risk. When a user selects a different dropdown option, the displayed value doesn’t change as expected. This can lead to confusion and a frustrating user experience.

In the provided code, different options can be selected, but the default value of the dropdown does not reflect the change. Players in this scenario include:

A handleOwnerChange method for updating the selected owner.

A handleApproverChange method for updating the selected approver.

Existing state management which does not directly modify the dropdown's display.

Now, let's dive into how we can solve it.

The Solution

To address the issue, you need to directly modify the properties of your object from which you're fetching the user's list. Here's how you can effectively implement this in your React component.

Step 1: Modify State and Props

You need to ensure that when the dropdown selection changes, it updates both the component's state and the inner properties of the risk object that is passed as a prop. Here’s how you can adjust your change handlers:

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

Step 2: Use Filter for Default Value

Next, ensure that you correctly filter the user list based on the updated properties of the risk. This will make sure that the dropdown reflects the currently selected value:

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

Step 3: Component Lifecycle Management

Make sure you are also managing the component lifecycle correctly to reflect the changes. For instance, whenever you navigate away or return to the component, you might want to use componentDidUpdate to ensure the state of selectedOwnerId and selectedApproverId is in sync with the props:

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

Conclusion

By following these steps, you will be able to dynamically update the displayed values in your React-Select dropdowns based on user interaction. Modifying props directly may seem unconventional, but it’s a practical approach for ensuring your dropdown reflects the selected values correctly.

Implementing these changes will enhance the user experience by making the interactions feel seamless and intuitive.

Happy coding!