Sometimes, we want to set a height of a dialog in React Material UI.

In this article, we’ll look at how to set a height of a dialog in React Material UI.

How to set a height of a dialog in React Material UI?

To set a height of a dialog in React Material UI, we can set the classes prop of the dialog to an object that has the paper property set to a class that has the height style.

For instance, we write:

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

const useStyles = makeStyles(() => ({
  dialog: {
    height: 500
  }
}));

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

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

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

  return (
    <div>
      <Button variant="outlined" color="primary" onClick={handleClickOpen}>
        Open alert dialog
      </Button>
      <Dialog
        open={open}
        onClose={handleClose}
        classes={{ paper: classes.dialog }}
      >
        <DialogTitle>Use Google's location service?</DialogTitle>
        <DialogContent>
          <DialogContentText>
            Let Google help apps determine location. This means sending
            anonymous location data to Google, even when no apps are running.
          </DialogContentText>
        </DialogContent>
        <DialogActions>
          <Button onClick={handleClose} color="primary">
            Disagree
          </Button>
          <Button onClick={handleClose} color="primary" autoFocus>
            Agree
          </Button>
        </DialogActions>
      </Dialog>
    </div>
  );
}

We call makeStyles with a function that returns an object with the dialog property.

It’s set to an object with the height set to 500 pixels.

Next, we add a Button that opens the dialog.

And then we add the Dialog itself with the classes prop set to { paper: classes.dialog } to apply the styles in the classes.dialog class.

We call useStyles to return the classes.

Now we should see that the height of the dialog is 500px.

Conclusion

To set a height of a dialog in React Material UI, we can set the classes prop of the dialog to an object that has the paper property set to a class that has the height style.