Conditional radio button disabling in Material-ui

Currently, I am developing a React application using material-ui. My goal is to disable all radio buttons within a RadioGroup when a specific event occurs, and then re-enable them once the event is no longer active. For example, when a button is clicked, the radios should be disabled, and when the same button is clicked again, they should be re-enabled. I have implemented a conditional rendering solution using a ternary operator, but it seems quite redundant. I am wondering if there is a better way to achieve this. Is there a method to dynamically set the disable prop of a Material-UI component to a variable? Thank you!

                        const radioDisabled = false;

                        // Some mechanism here that could potentially 
                        // change the value of radioDisabled

                        { radioDisabled

                        ?

                            <RadioGroup row
                                value={value}
                                onChange={(e)=>{setValue(e.target.value)}}
                            >
                                <FormControlLabel
                                    value='1'
                                    checked={value === '1'}
                                    control={<Radio/>}
                                    label='1'
                                />
                                <FormControlLabel
                                    value='2'
                                    checked={value === '2'}
                                    control={<Radio/>}
                                    label='2'
                                />

                                      ...

                                <FormControlLabel
                                    value='n'
                                    checked={value === 'n'}
                                    control={<Radio/>}
                                    label='n'
                                />
                            </RadioGroup>

                        :

                            <RadioGroup row
                                value={value}
                                onChange={(e)=>{setValue(e.target.value)}}
                            >
                                <FormControlLabel
                                    disabled      // the only difference from above
                                    value='1'
                                    checked={value === '1'}
                                    control={<Radio/>}
                                    label='1'
                                />
                                <FormControlLabel
                                    disabled      // the only difference from above
                                    value='2'
                                    checked={value === '2'}
                                    control={<Radio/>}
                                    label='2'
                                />

                                      ...

                                <FormControlLabel
                                    disabled      // the only difference from above
                                    value='n'
                                    checked={value === 'n'}
                                    control={<Radio/>}
                                    label='n'
                                />
                            </RadioGroup>

Answer №1

Consider these two approaches to eliminate redundancy:

The first approach involves removing the ternary conditional rendering and implementing the disabled prop based on a condition like disabled={radioDisabled}

const [radioDisabled, setRadioDisabled] = React.useState(false);

<FormControlLabel
  disabled={radioDisabled}
  value="1"
  checked={value === "1"}
  control={<Radio />}
  label="1"
/>

Alternatively, the second option entails iterating through the values and labels of your radio input to determine if disabling is necessary, again, based on a condition

const [radioDisabled, setRadioDisabled] = React.useState(false);

const radioInputs = [
  {
    value: 1,
    label: 1
  },
  {
    value: 2,
    label: 2
  },
  {
    value: 3,
    label: 3
  }
];

{radioInputs.map((radioInput) => {
  return (
     <FormControlLabel
       disabled={radioDisabled}
       value={radioInput.value}
       checked={value == radioInput.value}
       control={<Radio />}
       label={radioInput.label}
     />
  );
})}

Check out the demonstration on CodeSandBox: https://codesandbox.io/s/patient-worker-8mrq3?file=/src/App.js:1717-2041

Answer №2

import { useState } from 'react'

const [isRadioDisabled, setIsRadioDisabled] = useState(false)

<Button title='Disables RadioButtons' 
  onPress={() => setIsRadioDisabled(prevState => !prevState)} />

    <RadioGroup row
      value={value}
      onChange={(e)=>{setValue(e.target.value)}}
      >
        <FormControlLabel
          disabled={radioDisabled}
          value='1'
          checked={value === '1'}
          control={<Radio/>}
          label='1'
        />
        <FormControlLabel
          disabled={radioDisabled}
          value='2'
          checked={value === '2'}
          control={<Radio/>}
          label='2'
        />

        <FormControlLabel
          disabled={radioDisabled}
          value='n'
          checked={value === 'n'}
          control={<Radio/>}
          label='n'
        />
    </RadioGroup>

Implement React's useState hook to switch the states in order to enable or disable FormControlLabels. By utilizing a button to alter the state between true and false, you can achieve the desired functionality without the need for conditional rendering. The disabled prop accepts a boolean value that can be toggled between true and false seamlessly.

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