Display the option to "select all" in the Autocomplete feature

When I click on 'select all', I want the input box to display 'ALL' instead of other items.

I attempted to incorporate a condition in the getOptionLabel function, but despite showing 'ALL', it still displays other elements.

<Autocomplete
  multiple
  label="Students*"
  id="createStudent"
  options={
    studentOptions(index).length > 0
    ? [
      {
        value: SELECT_ALL, name: 'ALL',
      },
      ...studentOptions(index)
    ] : []
  }
  disableCloseOnSelect
  variant='outlined'
  getOptionLabel={(option) => {
  return (
    option.value === SELECT_ALL
    ? 'ALL'
    : option.name
    );
  }
    
  }
  renderOption={(props, option, { selected }) => (
    <li {...props}>
      <Checkbox
        icon={icon}
        checkedIcon={checkedIcon}
        style={{ marginRight: 8 }}
        checked={selected}
      />
      {option.name}
    </li>
  )}
  limitTags={1}
  renderInput={(params) => {
    return (
      <TextField 
      {...params} 
      label="Students*"
     />
    );
  }}
  value={formData.createClass[index].studentList}
  key={studentOptions(index)}
  onChange={handleStudentChange(index, studentOptions(index))}
  isOptionEqualToValue={(option, value) =>option.name === value.value || ''}
/>

Answer №1

If you want to customize the way selected options are displayed, you can utilize the renderTags property.

In your particular scenario, you could try something along these lines:

<Autocomplete
  //all your previous properties
  renderTags={(selectedOptions) => {
    const isAllSelected = selectedOptions.findIndex((o) => o.value === "SELECT_ALL") !== -1
    if (isAllSelected ) return <Chip label={"All"} />;
    else return selectedOptions.map((o.name) => <Chip label={o} />);
  }}
/>

Feel free to use this code snippet for guidance:

https://codesandbox.io/s/material-ui-autocomplete-sticky-select-all-action-custom-tags-pe174t?fontsize=14&hidenavigation=1&theme=dark

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