Coding⏱️ 2 min read📅 2026-05-30

How to Fix: A component is changing an uncontrolled input of type text to be controlled error in ReactJS

Switch from uncontrolled to controlled input element in ReactJS

Quick Answer: Use the `value` attribute and update state with `onChange` event, or use a controlled component library like Material-UI or React Hook Form

📋 Table of Contents

⚠️ Fix: Use the `setState` Method
🔧 Why?
✨ Wrapping Up

In your code, you are updating the state of `fields` directly without using the `setState` method. This is causing the input element to lose its original uncontrolled behavior and become controlled unexpectedly.

⚠️ Fix: Use the `setState` Method

Update the state of `fields` using the `setState` method, like so:

Example:

onChange(field, e) { this.setState({fields: {[field]: e.target.value}}});}

🔧 Why?

By using the `setState` method, you ensure that any changes to the state are handled by React and do not cause unexpected behavior.

✨ Wrapping Up

Make sure to update your code accordingly, and you should no longer receive the warning message about changing an uncontrolled input to a controlled one.

Did this fix your problem?

If not, try searching for specific error codes.

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❓ Frequently Asked Questions

Update the state of `fields` using the `setState` method, like so:

onChange(field, e) { this.setState({fields: {[field]: e.target.value}}});}

By using the `setState` method, you ensure that any changes to the state are handled by React and do not cause unexpected behavior.

Make sure to update your code accordingly, and you should no longer receive the warning message about changing an uncontrolled input to a controlled one.

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