How to Call Methods Between React Components Using Props in Material UI

Learn how to effectively manage component methods in React by passing them as props. This guide covers how to control modal visibility in Material UI.
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This video is based on the question https://stackoverflow.com/q/66932856/ asked by the user 'Denis' ( https://stackoverflow.com/u/9492048/ ) and on the answer https://stackoverflow.com/a/66935129/ provided by the user 'Yatin Gaikwad' ( https://stackoverflow.com/u/5793633/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Call Methods Between React Components Using Props in Material UI

In the world of React, it’s common to need to pass methods or open modals from one component to another. If you’re working with Material UI and building an account menu, you might find yourself in a situation where you want to show a login modal upon clicking the login option. This guide will guide you on how to accomplish this by creating a parent-child relationship between your components and passing methods as props.

Understanding the Problem

When you import a component in React, it does not automatically allow you to invoke its methods. In this case, you want to call the handleLoginOpen from your LoginModal.js component when the Login button is clicked in File1.js. This requires a strategy to control the visibility of the LoginModal from File1.js.

Solution Overview

The solution involves maintaining a state in File1.js that determines whether the LoginModal should be displayed. We will achieve this by:

Creating state variables to manage the visibility.

Passing these state variables and corresponding functions to the LoginModal component as props.

Step 1: Setting Up State Management

In File1.js, we need to create a couple of state variables:

isModalShown is used to show or hide the modal.

A function to toggle the value of this state.

Here's how you can set it up:

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

Step 2: Update the MenuItem Click Event

Now, you can modify the MenuItem for the Login in the render method to utilize the openModal function:

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

Step 3: Passing Props to the Login Modal

Next, you want to render the LoginModal component within File1.js and pass the necessary props:

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

Step 4: Configuring the LoginModal Component

Finally, you’ll adjust LoginModal.js to accept these props and control the modal visibility:

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

Conclusion

By setting up a simple parent-child relationship with props, you can effectively control modal visibility within your React application using Material UI components. Now, anytime you click the login menu item, the LoginModal will pop up, allowing users to log in seamlessly.

This method is beneficial not only for modals but for managing various actions and methods across different components in your React applications.

Feel free to use this approach for your components, and you’ll be able to manage state and method calls elegantly!

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