React NumberBox - Overview

The NumberBox is a UI component that displays a numeric value and allows a user to modify it by typing in a value, and incrementing or decrementing it using the keyboard or mouse.

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The following code adds the NumberBox to your page. The simplest configuration of the UI component requires only a value to be specified. In addition, you can specify the placeholder to be displayed when the number box is empty.

App.js
  • import React from 'react';
  •  
  • import 'devextreme/dist/css/dx.common.css';
  • import 'devextreme/dist/css/dx.light.css';
  •  
  • import NumberBox from 'devextreme-react/number-box';
  •  
  • class App extends React.Component {
  • render() {
  • return (
  • <NumberBox
  • defaultValue={20}
  • placeholder="Enter your age" />
  • );
  • }
  • }
  • export default App;

In most cases, it is useful to specify the range of possible values. For this purpose, set the min and max properties.

App.js
  • import React from 'react';
  •  
  • import NumberBox from 'devextreme-react/number-box';
  •  
  • class App extends React.Component {
  • render() {
  • return (
  • <NumberBox
  • defaultValue={20}
  • min={16}
  • max={100} />
  • );
  • }
  • }
  • export default App;

If the entered value falls out of the range, the UI component sets the value to the lower (if the value is less than the lower bound) or upper bound (if the value is greater than the upper bound).

See Also