Question 72408 in Reactjs Question posted in
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reactjs : How to set a default value by specific value in react-select?

First, let me say that I searched a lot about the problem, but I could not solve my problem.

I have a specific value that I want to be displayed in the view in the select box by default.

select code :

<Select
      options={getMainCategory.data.map((item) => {
        return { value: item.id, label: item.categoryName };
      })}
       defaultValue={getMainCategory.data.find((x)=>{
        const c = x.id === mainparentId;
        return { value: c.id, label: c.categoryName };
       })}
      onChange={onOptionChange}
/>

I did it with the above code but it didn’t work. I would be grateful if you could guide me?

Tags:

3

Answers


  1. 0

    The issue in your code is you are using defaultValue function, which must be string, number, object. In your example you have to use value property as following:

    <Select
  options={getMainCategory.data.map((item) => {
    return { value: item.id, label: item.categoryName };
  })}
  defaultValue={getMainCategory.data.find((x) => x.id === mainparentId).value}
  onChange={onOptionChange}
/>
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  2. 0

    you can use it in this way

    import React, { useState } from ‘react’;

    import Select from 'react-select';

const options = [
  { value: 'apple', label: 'Apple' },
  { value: 'banana', label: 'Banana' },
  { value: 'orange', label: 'Orange' },
];

const MySelect = () => {
  const [selectedOption, setSelectedOption] = useState(null);

  // set the default value to 'Banana'
  const defaultValue = options.find((option) => option.value === 'banana');

  return (
    <Select
      options={options}
      value={selectedOption}
      onChange={setSelectedOption}
      defaultValue={defaultValue}
    />
  );
};

    In this example, the defaultValue prop is set to the option object that matches the value ‘banana’. When the component first renders, the ‘Banana’ option will be selected by default.

    You can change the default value to any other option by finding its corresponding option object and passing it as the defaultValue.

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  3. 0 
    import { useState, useEffect } from 'react';
import Select from 'react-select';

function MyComponent() {
  const [options, setOptions] = useState([]);
  const [defaultValue, setDefaultValue] = useState(null);

  useEffect(() => {
    // Make API call to fetch options from database
    fetch('/api/options')
      .then(response => response.json())
      .then(data => {
        // Set options state
        setOptions(data);

        // Find default option in data and set defaultValue state
        const defaultOption = data.find(option => option.value === 'option2');
        setDefaultValue(defaultOption);
      });
  }, []);

  return (
    <Select
      options={options}
      defaultValue={defaultValue}
    />
  );
}
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