按以下方式更新代码

在您的汇入中

import { useForm, Controller } from 'react-hook-form';
import Select from 'react-select';

在挂钩组件中

function Yourcomponent(props){

    const methods = useForm();
    const { handleSubmit } = methods;
    

    const options = [
     { value: '1', label: 'Apple'},
     { value: '2', label: 'Ball'},
     { value: '3', label: 'Cat'},
    ];
    
    const default_value = 1; // you can replace with your default value
    

    // other codes of the component 
    

    function submitHandler(formData){
    
    // values are available in formData

    }

    return(
      <div>
        
        {* other part of your component *}
        <form onSubmit={handleSubmit(submitHandler)} >

           {* other part of your form *}
            <Controller
                control={methods.control}
                defaultValue={default_value}
                name="field_name_product"
                render={({ onChange, value, name, ref }) => (
                    <Select
                        inputRef={ref}
                        classNamePrefix="addl-class"
                        options={options}
                        value={options.find(c => c.value === value)}
                        onChange={val => onChange(val.value)}
                    />
                )}
            />

           {* other part of your form *}
        </form>

        {* other part of your component *}
      </div>
    )
}

对于多选（与react-hook-form v7一起使用）：

import Select from "react-select";
import { useForm, Controller } from "react-hook-form";

const {
  control
} = useForm();

<Controller
  control={control}
  defaultValue={options.map(c => c.value)}
  name="options"
  render={({ field: { onChange, value, ref }}) => (
    <Select
      inputRef={ref}
      value={options.filter(c => value.includes(c.value))}
      onChange={val => onChange(val.map(c => c.value))}
      options={options}
      isMulti
    />
  )}
/>

我是这样做的：
第一个

好吧，实际上这些答案中的大多数都不适用于您有一个自定义onChange函数的情况。诀窍（看起来像是一个bug）是首先设置“onChange（瓦尔.value）”内联，然后设置您的状态变量。下面是我的完整代码;

import { useForm, Controller } from "react-hook-form";
   const {
       register,
       control,
       formState: { errors },
       handleSubmit,
    } = useForm();

   const handleChangeType = (option) => {
      setItemType(option);
      var options = getOptions(option.value); 
      setList(options);
      setGender(null);
   }; 

    <Controller
      control={control}
      name="itemType"
      rules={{
         required: {
            value: assetType.value == "item",
            message: "Item type is required.",
         },
      }}
      render={({ field: { onChange, value, ref, name } }) => (
         <Select 
            className={"react-select"}
            classNamePrefix={"react-select"}
            placeholder={"Item type"} 
            options={itemTypeList}  
            onChange={val => {
                onChange(val.value);
                handleChangeType(val); 
            }} 
         />
      )}
   /> 
   {errors.item?.message && <div class="validationText">{errors.item?.message}</div>}

import Select from "react-select";
import { useForm, Controller } from "react-hook-form";
const options = [
     { value: '1', label: 'Apple'},
     { value: '2', label: 'Ball'},
     { value: '3', label: 'Cat'},
    ];
const {control} = useForm();
<Controller
 control={control}
 name="AnyName"
 render={({ field: { onChange, value, name, ref } }) => (
        <Select
        inputRef={ref}
        classNamePrefix="addl-class"
        options={options}
        value={options.find((c) => c.value === value)}
        onChange={(val) => onChange(val.map((c) =>c.value))}
        isMulti
        />
        )}
/>

通过react-hook-form使用自定义寄存器来解决此问题，如下所示：
https://react-hook-form.com/get-started#Registerfields

我想发布适合我的内容，我使用了react-select、react-hook-form和**@hookform/error-message**：
我创建了一个函数，如下所示

const handleCategoryInputChange = (newValue: any) => {
    console.log(newValue.value);
    return setValue('contract', newValue.value);
  };

我的react select如下所示：

<Controller
  name="contract"
  control={control}
  rules={{ required: true }}
  render={({ field: { onChange, value, name, ref } }) => (
    <ReactSelect
     // value={contractData.find((c) => c.value === value)}
     // onChange={(val) => onChange(val)}
     onChange={handleCategoryInputChange}
     options={contractData}
     ref={ref}
     name={name}
     defaultValue={contractData[0]}
     theme={customTheme}
     isSearchable={false}
     className="block w-full min-w-0 flex-1 sm:text-sm"
/>
)}
/>
<ErrorMessage errors={errors} name="contract" message="Select a Contract" />

我不认为我的className工作正常，你可以忽略这部分。它是为我的具体设置工作，虽然哈哈。注解掉的代码没有工作的方式，我想要的，因为当我控制台记录的数据，我得到了它如下：

contract: {label: 'contract name', value: 'contract name'}
optionPeriods: "dfd"
performanceEndDate: "2022-12-08"
performanceStartDate: "2022-12-08"
proposalDueDate: "2022-12-08T12:54"
requirements: "dfd"
trackingNumber: "dfd"

因此，我对该特定解决方案进行了注解，并按照您现在看到的方式进行了操作，我得到了我希望用于合同的确切数据，如下所示：

contract: "contract name"
optionPeriods: "dfd"
performanceEndDate: "2022-12-08"
performanceStartDate: "2022-12-08"
proposalDueDate: "2022-12-08T12:54"
requirements: "dfd"
trackingNumber: "dfd"

我希望这能帮上忙