How to display multiple selected values from a dropdown in React - reactjs

I'm new to React and I wanted to create a dropdown which can select multiple values. For that I used the react-select plugin. In my React dev tool the selected values are getting stored but I'm not able to display all the selected values.
Any help is highly appreciated.
TIA
import React, { useState } from "react";
import Select from 'react-select'
const options = [
{ value: 'React', label: 'React' },
{ value: 'Vue', label: 'Vue' },
{ value: 'Angular', label: 'Angular' },
{ value: 'Java', label: 'Java' },
]
const [skills, setSkills] = useState([]);
const handleChange = (skill) => {
setSkills({skill})
console.log("skills", skill);
}
return (
<>
<h2>Please select all your skills</h2>
<form>
<Select
options={options}
onChange={handleChange}
isMulti={true}
value={value}
/>
<button>Next</button>
</form>
</>
)
}
export default UserSkills;
When I'm commenting isMulti prop, I'm getting that one selected value, but I'm not getting anything with isMulti prop.

You are controlling the Select component by giving it a value, and since you are not updating value in the handleChange function it will not be updated.
You could use the skills array as value instead and it will update as expected.
CodeSandbox
const options = [
{ value: "React", label: "React" },
{ value: "Vue", label: "Vue" },
{ value: "Angular", label: "Angular" },
{ value: "Java", label: "Java" }
];
function UserSkills() {
const [skills, setSkills] = useState([]);
const handleChange = (skills) => {
setSkills(skills || []);
};
return (
<>
<h2>Please select all your skills</h2>
<form>
<Select
options={options}
onChange={handleChange}
value={skills}
isMulti
/>
<button>Next</button>
</form>
</>
);
}
export default UserSkills;

Related

How can I update State in React using the React-Select Component and User Selection?

I'm trying to update a State in my project based on a User Selection from a dropdown menu.
I passed the 2 states (roomType & occupants) along with their setter/change functions (onRoomTypeChange & onOccupantsChange) from the parent Component.
I’ve tried to read through the React Select Library, but having trouble.
Wondering if someone could point me in the right direction.
import React from 'react';
import Select from 'react-select';
const roomOptions = [
{ value: 'Standard', label: 'Standard' },
{ value: 'Delux', label: 'Delux' }
];
const occupantOptions = [
{ value: 1, label: '1' },
{ value: 2, label: '2' },
{ value: 3, label: '3' },
{ value: 4, label: '4' },
];
const RoomDetails = (props) => {
let {
roomType,
onRoomTypeChange,
occupants,
onOccupantsChange
} = props;
const handleChange = (e) => {
onRoomTypeChange(e.target.value);
};
return (
<div>
<div className="form-group">
<label className="select-label">Room Type: {roomType} </label>
<Select
// value={e.target.value}
onChange={handleChange}
options={roomOptions}
theme={theme}
/>
<label className="select-label">Guests: {occupants}</label>
<Select
value={occupants}
onDatachange={onOccupantsChange}
options={occupantOptions}
theme={theme}
/>
</div >
</div>
);
};
export default RoomDetails;
I resolved the and wanted to post an update:
I had installed another package called “react-dropdown-select” that I removed from my package.json, I believe was interfering with my react-select package .
The return object was not an event, it was the selected object from the corresponding options array. I destructured the value property in the parameter and used the Setter Function on the value only.
I originally included a Value= attribute on the Select Component, which was set to my current state value
<Select
value={stateProperty}
/>
When I removed the Value attribute, the bug was gone
(Here is the solution)
import React from 'react';
import Select from 'react-select';
const roomOptions = [
{ value: 'Standard', label: 'Standard' },
{ value: 'Delux', label: 'Delux' }
];
const occupantOptions = [
{ value: 1, label: '1' },
{ value: 2, label: '2' },
{ value: 3, label: '3' },
{ value: 4, label: '4' },
];
const RoomDetails = (props) => {
let {
onRoomTypeChange,
onOccupantsChange
} = props;
const handleChangeRoom = ({ value }) => {
console.log(value);
onRoomTypeChange(value);
};
const handleChangeOccupants = ({ value }) => {
console.log(value);
onOccupantsChange(value);
};
return (
<div>
<div className="form-group mb-2">
<span className="form-label mt-3">Room Type </span>
<Select
onChange={handleChangeRoom}
options={roomOptions}
theme={theme}
placeholder="Room Type"
/>
<span className="form-label mt-3">Guests</span>
<Select
onChange={handleChangeOccupants}
options={occupantOptions}
theme={theme}
placeholder="Number of Guests"
/>
</div >
</div>
);
};
export default RoomDetails;

React-select fills an null value option when I try to update a created object

I'm using react-select for choosing members for a project based on a team list.
The format of the options is as specified in the docs (array of objects with label and value)
const options = [
{label: "Sam Altman", value: "61b5b1a4f401d574f5cefab7"},
{label: "Sam B", value: "87tgb1a4f401d574f5cefab7"},
{label: "John Altman", value: "9o2nb1a4f401d574f5sd347"},
]
The problem arises when I'm trying to update the values in a different view. The selected values contains null option (where I auto populate the form with the created values)
My current select component is as follows: -
<Select
isMulti
options={options}
value={item}
onChange={(newMembers) =>
setValues({ ...values, assignedTo: newMembers || [] })
}
/>
The problem only arises while updating the created members
use values instead of value. below is sample code.
import { useState } from 'react';
import Select from 'react-select';
const options = [
{ label: "Sam Altman", value: "61b5b1a4f401d574f5cefab7" },
{ label: "Sam B", value: "87tgb1a4f401d574f5cefab7" },
{ label: "John Altman", value: "9o2nb1a4f401d574f5sd347" }
];
function App() {
const [values, setVaues] = useState([]);
return (
<div>
<Select
isMulti
values={values}
onChange={(newMembers) => setVaues({ ...values, assignedTo: newMembers || [] })} options={options}
/>
</div>
);
}
export default App;

React-select defaultValue is not showing

I'm using Formik and React-select library and defaultValue is not working/taking effect and it remains empty, i don't know why this is happening.
MySelectInput component:
interface Props {
// .. other props
options: CategoryOptions[];
defaultCategory: CategoryOptions;
}
const MySelectInput: React.FC<Props> = (props) => {
const [field, meta, helpers] = useField(props.name);
return (
<>
<Select
options={props.options}
isSearchable
defaultValue={props.defaultCategory}
onChange={(v) => helpers.setValue(v!.value)}
onBlur={() => helpers.setTouched(true)}
placeholder={props.placeholder}
styles={customSelectStyles}
/>
</>
)
};
export default MySelectInput;
Usage:
<MySelectInput
options={CategoryOptions}
placeholder="Category"
name="category"
label="Category"
defaultCategory={{ value: activity.category, label: activity.category }}
/>
My array of objects (CategoryOptions):
export const CategoryOptions: CategoryOptions[] = [
{ value: 'drinks', label: 'Drinks' },
{ value: 'music', label: 'Music' },
{ value: 'travel', label: 'Travel' },
];
The options are working and displaying well but defaultValue is not working. If i use static strings inside object properties like:
defaultCategory={{ value: "test", label: "test" }}
is working well. Any idea?
I think you should probably use an item from CategoryOptions.
Instead of
defaultValue={props.defaultCategory}
do
defaultValue={props.defaultCategory[0]}
I'm also wondering why your CategoryOptions object is same as the CategoryOptions type. Maybe you should rename it to categoryOptions

Auto selected of value from options in react-select react

Problem Statement :
I am using react-select 2.4.1 for the Select dropdown.
I want to auto select the value from options array based on some condition, and that auto selected value should also get updated in the component state or vice versa.
How can I achieve that?
I have tried multiple ways, please help.
Thanks in advance.
Below is my code for the Select dropdown.
<Select
options={props.mercModeOptions}
onChange={(evt) => setSelectedMercMode(evt.value)}
selected={props.mercModeDefaultOpt}
/>
Below is the options array:
props.mercModeOptions = [
{
value: "first",
label: "first"
},
{
value: "second",
label: "second"
},
{
value: "third",
label: "third"
}
]
Value to be auto selected:
props.mercModeDefaultOpt = {
value: "third",
label: "third"
};
I have added sample codesandBox to achieve this.
We can store the default value in a variable using the useMemo hook and update the local state.
import Select from "react-select";
import { useEffect, useMemo, useState } from "react";
const dropDowonData = [
{ value: "first", label: "first" },
{ value: "second", label: "second" },
{ value: "third", label: "third" }
];
export default function App() {
const [selectedValue, setSelectedValue] = useState();
// This will run for only during the first render.
const defaultSelectedValue = useMemo(() => {
// to update the local state
setSelectedValue(dropDowonData[0]);
return dropDowonData[0];
}, []);
console.log(selectedValue);
return (
<div className="App">
<Select
defaultValue={defaultSelectedValue}
value={selectedValue}
onChange={(value) => setSelectedValue(value)}
name="Select"
options={dropDowonData}
/>
</div>
);
}

React-Select: Getting multiple onChange values from dropdown

import React from 'react';
import Select from 'react-select';
const options = [
{ value: 'all', label: 'all' },
{ value: 'destroyed', label: 'Destroyed' },
{ value: 'damaged', label: 'Damaged' },
{ value: 'physicalDamage', label: 'PhysicalDamage' }
]
class SearchFilters extends React.Component {
_onChange = (e, options) => {
const onChangeData = {
value: e.value,
name: e.label,
result: options.find(item => item.value === e.value)
};
console.log(onChangeData.value);
return onChangeData;
};
render(){
return(
<div>
<Select
options={options}
onChange={e => this._onChange(e, options)}
isMulti={true}
/>
</div>
)
}
}
export default SearchFilters
From the above code if isMulti is false in select, I'm able to print the value of the selected option in console, but if I change it to true, I get the value as undefined.
I need help in fixing this. Thanks in advance.
Ouput:

Resources