How to create Dialog Box in ReactJS?

A Dialog is a type of modal window which appears in front of app content to provide critical information or ask for a decision. Material UI for React has this component available for us, and it is very easy to integrate. We can create Dialog Box in ReactJS using the following approach.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command.

npx create-react-app foldername

Step 2: After creating your project folder i.e. foldername, move to it using the following command.

cd foldername

Step 3: After creating the ReactJS application, Install the material-ui modules using the following command.

npm install @material-ui/core

Project Structure: It will look like the following.

Project Structure

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React from "react";
import Dialog from "@material-ui/core/Dialog";
import DialogContentText from "@material-ui/core/DialogContentText";
import DialogTitle from "@material-ui/core/DialogTitle";
import DialogActions from "@material-ui/core/DialogActions";
import DialogContent from "@material-ui/core/DialogContent";
import Button from "@material-ui/core/Button";

export default function App() {
  const [open, setOpen] = React.useState(false);

  const handleClickToOpen = () => {
    setOpen(true);
  };

  const handleToClose = () => {
    setOpen(false);
  };

  return (
    <div stlye={{}}>
      <h4>How to create Dialog Box in ReactJS?</h4>
      <Button variant="outlined" color="primary"
              onClick={handleClickToOpen}>
        Open Demo Dialog
      </Button>
      <Dialog open={open} onClose={handleToClose}>
        <DialogTitle>{"How are you?"}</DialogTitle>
        <DialogContent>
          <DialogContentText>
            I am Good, Hope the same for you!
          </DialogContentText>
        </DialogContent>
        <DialogActions>
          <Button onClick={handleToClose}
                  color="primary" autoFocus>
            Close
          </Button>
        </DialogActions>
      </Dialog>
    </div>
  );
}

Step to Run Application: Run the application using the following command from the root directory of the project.

npm start

Output: Now open your browser and go to http://localhost:3000/, you will see the following output.

Reference: https://material-ui.com/components/dialogs/