Get the "ID" of the selected value with material-ui autocomplete

Question

I'm using the autocomplete component with material-ui.

1. The data in "customerList" in the search field is no problem. But I can't get the "ID" number of the data I selected. I want to get the ID number of the selected data.

2. Also, an error like below appears. How can I fix this?

import Autocomplete from '@material-ui/lab/Autocomplete';


class AppointmentFormContainerBasic extends React.PureComponent {
  constructor(props) {
    super(props);
  }

  render() {

    const textEditorProps = (field) => ({
      variant: 'outlined',
      onChange: ({ target: change }) => this.changeAppointment({
        field: [field], changes: change.value
      }),
      value: displayAppointmentData[field] || '',
      className: classes.textField
    });

    const customerList = [
      {id: "1", customerName: 'John', customerSurname: "test0"},
      {id: "2", customerName: 'Bob', customerSurname: "test1"},
      {id: "3", customerNametle: 'steve', customerSurname: "test2"},
      {id: "4", customerName: 'steve', customerSurname: "test3"},
      {id: "4", customerName: 'natalia', customerSurname: "test4"}
    ];

    return (
      <AppointmentForm.Overlay
        visible={visible}
        target={target}
        fullSize
        onHide={onHide}>
        <div>
          <div className={classes.content}>
            <div className={classes.wrapper}>
              <Create className={classes.icon} color="action" />
              <Autocomplete
                id="free-solo-demo"
                freeSolo
                options={customerList.map( (option) => {
                  if (top100Films.customerName === undefined) {
                    console.log("undefined")
                  } else {
                    console.log("option.customerName")
                  }
                  return option.customerName + " " + option.customerSurname;
                })}

                
                defaultValue={displayAppointmentData['customerName']}
                onInputChange={(event, newInputValue) => {
                  this.changeAppointment({
                    field: ['customerName'], changes: newInputValue,
                    value: displayAppointmentData[newInputValue] || '',
                  });
                }}

              />
            </div>

        </div>
      </AppointmentForm.Overlay>
    );
  }
}

Answer 1

I had the same issue when selecting from objects using freeSolo with Autocomplete. Neither onChange nor onInputChange returns the object from options, only the label. Without freeSolo that works.

I resorted to going through my options to find the one that matches. Then I return that to the component using SourceSelect. It is not pretty, but it works. This is my code, it is TypeScript, but the "solution" will work for JavaScript as well.

import React, {ChangeEvent} from "react";
import {Autocomplete} from "@material-ui/lab";
import {TextField} from "@material-ui/core";

type SourceSelectParams =
    {
     updateSource:(source:Source)=> void
     sourceOptions:Source[]
     preSelected:Source
    }

export default function SourceSelect(props:SourceSelectParams){

        function optionForLabel(label:string):Source{
            let toReturn = props.sourceOptions.find(
                            (source:Source)=>{ return source.name === label}
)
            if(toReturn){
                return toReturn
            }
            return {name:label}
        }

        function update(event:ChangeEvent<{}>, value:Source|string|null) {
            if(value === null){
                return
            }else if( typeof value === 'string'){
                props.updateSource(optionForLabel(value))
            }else{
                props.updateSource( value)
            }
        }


        return(<Autocomplete  options={props.sourceOptions}
                              value={props.preSelected}
                              getOptionLabel={(option) => option.name}
                              onInputChange={update}
                              onChange={update}
                              renderInput={
                                  (params) => <TextField {...params}
                                                                  label="Source"
                                                                  variant="outlined"

                              />}
                              freeSolo
                              autoSelect
                              id={'source'}/>)
}

Answer 2

EDIT As you can see from the following sample the newValue param of onChange method returns an object.

import React from "react";
import TextField from "@material-ui/core/TextField";
import Autocomplete from "@material-ui/lab/Autocomplete";

export default function ComboBox() {
  return (
    <Autocomplete
      id="combo-box-demo"
      options={top100Films}
      getOptionLabel={option => option.title}
      style={{ width: 300 }}
      renderInput={params => (
        <TextField {...params} label="Combo box" variant="outlined" />
      )}
      onChange={(event, newValue) => {
        console.log(JSON.stringify(newValue, null, ' '));
      }}
    />
  );
}

const top100Films = [
  { id: 0, title: "The Shawshank Redemption", year: 1994 },
  { id: 1, title: "The Godfather", year: 1972 },
  { id: 2, title: "The Godfather: Part II", year: 1974 },
  { id: 3, title: "The Dark Knight", year: 2008 },
  { id: 4, title: "12 Angry Men", year: 1957 }
];

Unfortunately your code is just a fragment and it hard to determine why it does not work in your case.