Demos
Input(React)
ComboBox
Strings

ComboBox with Strings (React)

By default, the ComboBox acts as a regular HTML input element, with the additional styling and object model associated with all Wijmo controls.

Learn about Input Controls | ComboBox API Reference

This example uses React.

JavaScript
Angular
Vue
React
The demo is being dynamically compiled to support real-time code editing... For quicker access to features, switch to the "JavaScript" tab for a smoother experience! :)
app.jsx
index.html
app.css
data.jsx
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import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import ReactDOM from 'react-dom/client';
import React, { useState } from 'react';
import useEvent from 'react-use-event-hook';
import * as wjInput from '@mescius/wijmo.react.input';
import './app.css';
import { countries } from './data';
function App() {
    const [text, setText] = useState(null);
    const [value, setValue] = useState(null);
    const [isRequired, setIsRequired] = useState(false);
    const [isEditable, setIsEditable] = useState(true);
    const [customText, setCustomText] = useState(null);
    const initComboNoSrc = useEvent((sender) => {
        setText(sender.text);
    });
    const onTextChanged = useEvent((sender) => {
        setText(sender.text);
    });
    const initCombo = useEvent((sender) => {
        setValue(sender.selectedValue);
    });
    const initComboCustom = useEvent((sender) => {
        setCustomText(sender.text);
    });
    const onComboSelectedIndexChanged = useEvent((sender) => {
        setValue(sender.selectedValue);
    });
    const onCustomComboSelectedIndexChanged = useEvent((sender) => {
        setCustomText(sender.text);
    });
    const changeRequired = useEvent((value) => {
        setIsRequired(value);
    });
    const changeEditable = useEvent((value) => {
        setIsEditable(value);
    });
    return (<main className="container-fluid">
      <p>
        The <b>text</b> property gets or sets the user's input:
      </p>
      <div className="form-group">
        <label htmlFor="theComboNoSrc">Any string:</label>
        <wjInput.ComboBox id="theComboNoSrc" initialized={initComboNoSrc} textChanged={onTextChanged}>
        </wjInput.ComboBox>
      </div>
      <p>
        You have typed this: <b>{text}</b>.
      </p>

      <h4>Choosing from Lists</h4>
      <p>
        If you want to provide a list of strings for users to choose from, set the <b>itemsSource</b> property to an
        array containing those items and users will be able to select one of them:
      </p>
      <div className="form-group">
        <label htmlFor="theCombo">Select a Country:</label>
        <wjInput.ComboBox id="theCombo" itemsSource={countries} initialized={initCombo} selectedIndexChanged={onComboSelectedIndexChanged}>
        </wjInput.ComboBox>
      </div>
      <p>
        You have selected this country: <b>{value}</b>.
      </p>

      <h4>Simple Customizations</h4>
      <p>
        By default, the ComboBox will force users to select one of the items on the list. Users will not be able to
        leave the combo empty or to enter values that are not on the list.
      </p>
      <p>
        You can change these behaviors by setting the <b>isRequired</b> and <b>isEditable</b> properties:</p>
      <p>
        <label>
          <input id="isRequired" type="checkbox" onChange={e => changeRequired(e.target.checked)} defaultChecked={isRequired}/>
          isRequired
        </label>
      </p>
      <p>
        <label>
          <input id="isEditable" type="checkbox" onChange={e => changeEditable(e.target.checked)} defaultChecked={isEditable}/>
          isEditable
        </label>
      </p>
      <div className="form-group">
        <label htmlFor="theComboCustom">Select a Country:</label>
        <wjInput.ComboBox id="theComboCustom" initialized={initComboCustom} placeholder="No Country Selected" itemsSource={countries} isRequired={isRequired} isEditable={isEditable} textChanged={onCustomComboSelectedIndexChanged}>
        </wjInput.ComboBox>
      </div>
      <p>
        You have selected this country: <b>{customText}</b>.
      </p>
    </main>);
}
const container = document.getElementById('app');
if (container) {
    const root = ReactDOM.createRoot(container);
    root.render(<App />);
}
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as wjInput from '@mescius/wijmo.react.input'; import './app.css'; import { countries } from './data'; function App() { const [text, setText] = useState(null); const [value, setValue] = useState(null); const [isRequired, setIsRequired] = useState(false); const [isEditable, setIsEditable] = useState(true); const [customText, setCustomText] = useState(null); const initComboNoSrc = useEvent((sender) => { setText(sender.text); }); const onTextChanged = useEvent((sender) => { setText(sender.text); }); const initCombo = useEvent((sender) => { setValue(sender.selectedValue); }); const initComboCustom = useEvent((sender) => { setCustomText(sender.text); }); const onComboSelectedIndexChanged = useEvent((sender) => { setValue(sender.selectedValue); }); const onCustomComboSelectedIndexChanged = useEvent((sender) => { setCustomText(sender.text); }); const changeRequired = useEvent((value) => { setIsRequired(value); }); const changeEditable = useEvent((value) => { setIsEditable(value); }); return (<main className="container-fluid"> <p> The <b>text</b> property gets or sets the user's input: </p> <div className="form-group"> <label htmlFor="theComboNoSrc">Any string:</label> <wjInput.ComboBox id="theComboNoSrc" initialized={initComboNoSrc} textChanged={onTextChanged}> </wjInput.ComboBox> </div> <p> You have typed this: <b>{text}</b>. </p> <h4>Choosing from Lists</h4> <p> If you want to provide a list of strings for users to choose from, set the <b>itemsSource</b> property to an array containing those items and users will be able to select one of them: </p> <div className="form-group"> <label htmlFor="theCombo">Select a Country:</label> <wjInput.ComboBox id="theCombo" itemsSource={countries} initialized={initCombo} selectedIndexChanged={onComboSelectedIndexChanged}> </wjInput.ComboBox> </div> <p> You have selected this country: <b>{value}</b>. </p> <h4>Simple Customizations</h4> <p> By default, the ComboBox will force users to select one of the items on the list. Users will not be able to leave the combo empty or to enter values that are not on the list. </p> <p> You can change these behaviors by setting the <b>isRequired</b> and <b>isEditable</b> properties:</p> <p> <label> <input id="isRequired" type="checkbox" onChange={e => changeRequired(e.target.checked)} defaultChecked={isRequired}/> isRequired </label> </p> <p> <label> <input id="isEditable" type="checkbox" onChange={e => changeEditable(e.target.checked)} defaultChecked={isEditable}/> isEditable </label> </p> <div className="form-group"> <label htmlFor="theComboCustom">Select a Country:</label> <wjInput.ComboBox id="theComboCustom" initialized={initComboCustom} placeholder="No Country Selected" itemsSource={countries} isRequired={isRequired} isEditable={isEditable} textChanged={onCustomComboSelectedIndexChanged}> </wjInput.ComboBox> </div> <p> You have selected this country: <b>{customText}</b>. </p> </main>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo ComboBox with Strings</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.40/system.src.js" integrity="sha512-G6mEj6h18+m3MvzdviSDfPle/TfH0//cXcB33AKlNR/Rha0yQsKefDZKRTkIZos97HEGq2JMV1RT5ybMoQ3WsQ==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
h4 { margin-top: 24px; } label { margin-right: 3px; }
function getCountries() { return ['Austria', 'Australia', 'Belgium', 'Brazil', 'Canada', 'Chile', 'Denmark', 'Estonia', 'France', 'Germany', 'Hungary', 'Italy', 'Israel', 'Japan', 'Korea', 'Mexico', 'Norway', 'Oman', 'Poland', 'Qatar', 'Russia', 'Sweden', 'Scotland', 'Turkey', 'United Kingdom', 'United States', 'Vietnam', 'Yemen', 'Zambia']; } export const countries = getCountries();
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