MUI的Select和MenuItem中的默认值

Question

i have a edit form with filled input, the values are shown on textField accordingly but on DropDown it's not showing default value, [ check Select ], [ check other Fields ]

 <Select
                  name="active"
                  labelId="active-label"
                  id="active"
                  onChange={handleChange}
                  onBlur={handleBlur}
                  value={values.active}
                  defaultValue={values.active}
                  error={touched.active && Boolean(errors.active)}
                >
                 
                  <MenuItem value={true}>Yes</MenuItem>
                  <MenuItem value={false}>No</MenuItem>
                </Select>
              
           

i just want to display this default value too, it can be solved if i used option insted of meanuItem but option will not display dropdown items as i want check my code below and image for display dropdown with option

 <Select
             native
              name="active"
              labelId="active-label"
              id="active"
              onChange={handleChange}
              onBlur={handleBlur}
              value={values.active}
              defaultValue={values.active}
            > 
              <option value={true} >Yes</option>
              <option value={false}>No</option>
            </Select>

the code for user binding with values:

const [user, setUser] = useState({});
async function getData(id) {
const fetchedUser = await fetch(`${state.baseUrl}users/${id}`, {
  method: "GET",
  headers: {
    Authorization: `Bearer ${state.loginToken}`,
  },
})
  .then((response) => response.json())
  .catch((err) => console.error(err)); 

setUser(fetchedUser);} 


 useEffect(() => {
    getData(id);
  }, []);

const initialValues = {
    fullName: user.fullname,
    email: user.email,
    userName: user.username,
    organ: String(user.organization),
    password: "",
    role: String(user.role),
    active: user.is_active};

Answer 1

• usually defaultValue is used for uncontrolled component

• you can have the boolean values for MenuItem here as string as all the values in DOM are strings in general

---

<Select
  name="active"
  labelId="active-label"
  id="active"
  onChange={handleChange}
  onBlur={handleBlur}
  defaultValue={values.active.toString()}  // must match type of value so (convert to string / number)
  error={touched.active && Boolean(errors.active)}
>
      <MenuItem value={true}>Yes</MenuItem>  // value must be string or number
      <MenuItem value={false}>No</MenuItem>  // value must be string or number
</Select>;

Answer 2

What is your issue, default value is not getting displayed if you use MenuItem and if you use option then default value is getting display, but the Styling of the Options is old one if I am it's all about default value then please try the below code

if values object is like

  const values = {
    active: true,
  };

Then the below code will be

<Box>
  <Select
    name="active"
    labelId="active-label"
    id="active"
    onChange={handleChange}
    onBlur={handleBlur}
    value={values.active}
    sx={{ width: "10rem" }}
  >
    <MenuItem value={true}>Yes</MenuItem>
    <MenuItem value={false}>No</MenuItem>
  </Select>
</Box> 

below containe image