How to display selected option in select dropdown in React JS edit form

Question

I am using react-hook-form npm module for my edit data form. Here below is my API response sample:

{
  UUID: "xxxxxx-bd10-473e-a765-xxxxxx"
  address1: "addr1"
  address2: "addr2"
  address3: ""
  city: "xxxxx"
  contact: "uxxxxxb"
  country: "xxxxxx"
  email: "[email protected]"
  links: {Company: 'xxxxxx-4689-4689-8812-xxxxxxxxx'}
  name: "xxxxx"
  phone: "xxxxxxxx"
  state: "xxxxxxxx"
  zip: "11111"
}

Here below is the required code lines from the edit component

    import axios from 'axios'  
    import { useForm } from 'react-hook-form'
    // Now getting the default list of all the companies
    Edit.getInitialProps = async (context) => {
      try {
        const companyResponse = await axios(process.env.BASE_URL + '/v1/companies',{
            headers : {
                'Content-Type': 'application/json',
                'Authorization' : 'Bearer ' + process.env.TOKEN
            }
        })
        if(companyResponse.status == 200) {
            return {
                companies : companyResponse.data.results
            }
        } else {
            return {companies: []}
        }
    } catch (error) {
        return {companies: []}
    }
  }
  
  export default function Edit({...props}) {

      const [selectedCompany, setSelectedCompany] = useState(0)

      const {
        register,
        handleSubmit,
        reset,
        formState: { errors },
      } = useForm({mode: 'onBlur' });
      

      useEffect(() => {
          // Here I am getting location existing value from API response i.e. the above json response
          setSelectedCompany(locationDetails.links.Company)  // setting state of existing company of location
      })

      return (

               <>
                <form className="g-3" onSubmit={handleSubmit(editLocation)} data-testid="editLocationForm">
                   <select {...register('company', { required: true })} className="form-control">
                   {(props.companies || []).map((company, index) => (
                    <option key={index} value={company.UUID} defaultValue={company.UUID === selectedCompany}>{company.name}</option>
                 ))}
               </select>


                .....
                </form>
            </>

  }

I need to display the existing value of company name as selected in the drop down.

Diego Bascans · Accepted Answer · 2021-12-02 13:14:50Z

0

From the react-hook-form documentation you have to use the setValue or reset methods of the hook, the setValue will only set the value of the field you specify, and the reset will reset the whole form and set initial values that you specify

https://react-hook-form.com/api/useform/setvalue

https://react-hook-form.com/api/useform/reset

SetValue Approach

useEffect(() => {
          // Here I am getting location existing value from API response i.e. the above json response
          setSelectedCompany(locationDetails.links.Company)  // setting state of existing company of location
          setValue('company', locationDetails.links.Company);
      })

Reset approach

useEffect(() => {
          // Here I am getting location existing value from API response i.e. the above json response
          setSelectedCompany(locationDetails.links.Company)  // setting state of existing company of location
          reset('company', locationDetails.links.Company);
      })

answered Dec 2, 2021 at 13:14

Diego Bascans

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1 Comment

Deep Kakkar Over a year ago

I have used setValue('company', locationDetails.links.Company); as per your suggestion but it is not showing selected value in the select option dropdown.

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