Is there a way to customize the styles for the material UI alert component?

Question

Is there a way to customize the styles for the material UI alert component?

My journey with Typescript is relatively new, and I've recently built a snackbar component using React Context. However, when attempting to set the Alert severity, I encountered this error: "Type 'string' is not assignable to type 'Color | undefined'." Even though I have specified the type as string, I'm struggling to assign it a type of Color. Below is my Alert component code:

const AppAlert = () => {
  const alertContext = useContext(AlertContext);

  return (
    <div>
      <Snackbar open={alertContext.snackbarOpen}>
        <Alert severity={alertContext.snackbarType} variant="filled">
          {alertContext.snackbarMessage}
        </Alert>
      </Snackbar>
    </div>
  );
};

export default AppAlert;

Take a look at my Alert prop types below:

interface AlertProps {
  snackbarOpen: boolean;
  snackbarType: string;
  snackbarMessage: string;
  setAlert: (type: string, message: string) => void;
}

I hope my explanation was clear enough. I am still on the path to understanding TypeScript.

javascript reactjs typescript types material-ui

Answer 1

Answer №1

Material-ui alerts have four potential severity types:

'error' | 'info' | 'success' | 'warning'

, as outlined in the documentation found at this link: material-ui.com/api/alert. The issue you're facing is due to the severity property of your Alert component being set to an undefined value from alertContext.snackbarType. To prevent errors in case of any mishaps, it's best practice to define a default severity type like so:

<Alert severity={alertContext?.snackbarType || 'warning'} variant="filled">
    {alertContext?.snackbarMessage}
</Alert>

Answer 2

Material-ui alerts have four potential severity types:

'error' | 'info' | 'success' | 'warning'

, as outlined in the documentation found at this link: material-ui.com/api/alert. The issue you're facing is due to the severity property of your Alert component being set to an undefined value from alertContext.snackbarType. To prevent errors in case of any mishaps, it's best practice to define a default severity type like so:

<Alert severity={alertContext?.snackbarType || 'warning'} variant="filled">
    {alertContext?.snackbarMessage}
</Alert>

Answer 3

Answer №2

Dealing with a similar issue recently, I managed to resolve it by importing the type from @material-ui/lab/Alert:

import React from 'react';
import Alert from '@material-ui/lab/Alert';
import type { Color } from '@material-ui/lab/Alert'

interface Props{
    severity: Color,
    message: string
}

export const BuildReportAlert = (props: Props) => {

    const {severity, message} = props;

    return (
        <Alert
            variant='outlined'
            severity={severity}
        >
            {message}
        </Alert>
    )

}

Answer 4

Dealing with a similar issue recently, I managed to resolve it by importing the type from @material-ui/lab/Alert:

import React from 'react';
import Alert from '@material-ui/lab/Alert';
import type { Color } from '@material-ui/lab/Alert'

interface Props{
    severity: Color,
    message: string
}

export const BuildReportAlert = (props: Props) => {

    const {severity, message} = props;

    return (
        <Alert
            variant='outlined'
            severity={severity}
        >
            {message}
        </Alert>
    )

}

Answer 5

Answer №3

To manage alerts in React, you can utilize the useState hook to create an object that stores severity and message information.

const [alertInfo, setAlertInfo] = useState({
    severity: "warning",
    message: "This is a warning alert — pay attention!",
  });

Here is an example of how to use this object with a Mui component:

<Alert severity={alertInfo.severity}>{alertInfo.message}</Alert>

This setup allows you to easily update the severity and message content as needed.

Answer 6

To manage alerts in React, you can utilize the useState hook to create an object that stores severity and message information.

const [alertInfo, setAlertInfo] = useState({
    severity: "warning",
    message: "This is a warning alert — pay attention!",
  });

Here is an example of how to use this object with a Mui component:

<Alert severity={alertInfo.severity}>{alertInfo.message}</Alert>

This setup allows you to easily update the severity and message content as needed.

Answer 7

Answer №4

Attempting the same approach, I encountered an error message:

Type 'string' cannot be assigned to type 'OverridableStringUnion<AlertColor, AlertPropsColorOverrides> | undefined'.ts(2322)
Alert.d.ts(85, 3): The expected type is from the property 'severity' declared in the type 'IntrinsicAttributes & AlertProps & AlertSlotsAndSlotProps'
(property) AlertProps.severity?: OverridableStringUnion<AlertColor, AlertPropsColorOverrides> | undefined

In my setup, I configured my alert to accept a message and "severity" based on success or failure...

const [alertText, setAlertText] = useState({
      'severity': 'success',
      'text': ''
    })

Priorly, I had:

{alertText && <Alert id={alertText.severity} severity={alertText.severity}>{alertText.text}
        </Alert>}

I experimented with replacing sx={{ severity: ${alertText.severity} }} and it alleviated the issue!

Answer 8

Attempting the same approach, I encountered an error message:

Type 'string' cannot be assigned to type 'OverridableStringUnion<AlertColor, AlertPropsColorOverrides> | undefined'.ts(2322)
Alert.d.ts(85, 3): The expected type is from the property 'severity' declared in the type 'IntrinsicAttributes & AlertProps & AlertSlotsAndSlotProps'
(property) AlertProps.severity?: OverridableStringUnion<AlertColor, AlertPropsColorOverrides> | undefined

In my setup, I configured my alert to accept a message and "severity" based on success or failure...

const [alertText, setAlertText] = useState({
      'severity': 'success',
      'text': ''
    })

Priorly, I had:

{alertText && <Alert id={alertText.severity} severity={alertText.severity}>{alertText.text}
        </Alert>}

I experimented with replacing sx={{ severity: ${alertText.severity} }} and it alleviated the issue!

Is there a way to customize the styles for the material UI alert component?

Answer №1

Answer №2

Answer №3

Answer №4

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