import React from 'react'; import {makeStyles} from '@material-ui/core/styles'; import InputLabel from '@material-ui/core/InputLabel'; import MenuItem from '@material-ui/core/MenuItem'; import FormHelperText from '@material-ui/core/FormHelperText'; import FormControl from '@material-ui/core/FormControl'; import Select from '@material-ui/core/Select'; import Edge from "./edge"; const useStyles = makeStyles((theme) => ({ formControl: { margin: theme.spacing(1), minWidth: 120, }, selectEmpty: { marginTop: theme.spacing(2), }, })); const SimpleSelect = (props) => { const classes = useStyles(); const [age, setAge] = React.useState('0'); const [state, setState] = React.useState({ pos: props.pos, }); const handleChange = (event) => { console.log(state.pos); setAge(event.target.value); props.onValueChanged(state.pos, event.target.value); }; // console.log(props.items); return (