React UI Components Documentation

Typescript React Knob Component

This tutorial will show you the basics of how to get started with the jQWidgets Knob React Component.

Prerequisites

Refer to Getting Started with React before you start with this help topic.

Structure


I. Imports:

import * as React from 'react';
import 'jqwidgets-scripts/jqwidgets/styles/jqx.base.css';
import 'jqwidgets-scripts/jqwidgets/styles/jqx.material-purple.css';
import JqxKnob, { IKnobProps } from 'jqwidgets-scripts/jqwidgets-react-tsx/jqxknob';

II. Class:

class App extends React.PureComponent<{}, IKnobProps> {
constructor(props: {}) {
super(props);
this.state = {
width: '100%'
// Other Widget Props
}
}
render() {
return (
<JqxKnob
width={this.state.width} height={"100%"} .....
/>
)
}
}

III. Render:

Events

The event names in React are constructed of the original event names starting with capital letter plus on upfront:

Methods & Properties

This is how you call methods & props:

Every component have a method setOptions which accepts a object as an argument. This object contains component settings.

Every component also have a method getOptions which returns the value of the requested option.

Knob API

API Reference of the jQWidgets Knob React Component: Knob API

Knob Demos

Demos Reference of the jQwidgets Knob React Component: Knob Demos